{"url":"http://public2.vulnerablecode.io/api/packages/206404?format=json","purl":"pkg:apk/alpine/nodejs@12.22.6-r0?arch=armv7&distroversion=v3.11&reponame=main","type":"apk","namespace":"alpine","name":"nodejs","version":"12.22.6-r0","qualifiers":{"arch":"armv7","distroversion":"v3.11","reponame":"main"},"subpath":"","is_vulnerable":false,"next_non_vulnerable_version":null,"latest_non_vulnerable_version":null,"affected_by_vulnerabilities":[],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/43471?format=json","vulnerability_id":"VCID-1e68-txcx-qkcc","summary":"Arbitrary File Creation/Overwrite on Windows via insufficient relative path sanitization\n### Impact\n\nArbitrary File Creation, Arbitrary File Overwrite, Arbitrary Code Execution\n\nnode-tar aims to guarantee that any file whose location would be outside of the extraction target directory is not extracted. This is, in part, accomplished by sanitizing absolute paths of entries within the archive, skipping archive entries that contain `..` path portions, and resolving the sanitized paths against the extraction target directory.\n\nThis logic was insufficient on Windows systems when extracting tar files that contained a path that was not an absolute path, but specified a drive letter different from the extraction target, such as `C:some\\path`.  If the drive letter does not match the extraction target, for example `D:\\extraction\\dir`, then the result of `path.resolve(extractionDirectory, entryPath)` would resolve against the current working directory on the `C:` drive, rather than the extraction target directory.\n\nAdditionally, a `..` portion of the path could occur immediately after the drive letter, such as `C:../foo`, and was not properly sanitized by the logic that checked for `..` within the normalized and split portions of the path.\n\nThis only affects users of `node-tar` on Windows systems.\n\n### Patches\n\n4.4.18 || 5.0.10 || 6.1.9\n\n### Workarounds\n\nThere is no reasonable way to work around this issue without performing the same path normalization procedures that node-tar now does.\n\nUsers are encouraged to upgrade to the latest patched versions of node-tar, rather than attempt to sanitize paths themselves.\n\n### Fix\n\nThe fixed versions strip path roots from all paths prior to being resolved against the extraction target folder, even if such paths are not \"absolute\".\n\nAdditionally, a path starting with a drive letter and then two dots, like `c:../`, would bypass the check for `..` path portions.  This is checked properly in the patched versions.\n\nFinally, a defense in depth check is added, such that if the `entry.absolute` is outside of the extraction taret, and we are not in preservePaths:true mode, a warning is raised on that entry, and it is skipped.  Currently, it is believed that this check is redundant, but it did catch some oversights in development.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-37713.json","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-37713.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-37713","reference_id":"","reference_type":"","scores":[{"value":"0.00316","scoring_system":"epss","scoring_elements":"0.54908","published_at":"2026-05-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-37713"},{"reference_url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/isaacs/node-tar/commit/52b09e309bcae0c741a7eb79a17ef36e7828b946","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/isaacs/node-tar/commit/52b09e309bcae0c741a7eb79a17ef36e7828b946"},{"reference_url":"https://github.com/isaacs/node-tar/commit/82eac952f7c10765969ed464e549375854b26edc","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/isaacs/node-tar/commit/82eac952f7c10765969ed464e549375854b26edc"},{"reference_url":"https://github.com/isaacs/node-tar/commit/875a37e3ec031186fc6599f6807341f56c584598","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/isaacs/node-tar/commit/875a37e3ec031186fc6599f6807341f56c584598"},{"reference_url":"https://github.com/npm/node-tar","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/npm/node-tar"},{"reference_url":"https://github.com/npm/node-tar/security/advisories/GHSA-5955-9wpr-37jh","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/npm/node-tar/security/advisories/GHSA-5955-9wpr-37jh"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-37713","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-37713"},{"reference_url":"https://www.npmjs.com/package/tar","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.npmjs.com/package/tar"},{"reference_url":"https://www.oracle.com/security-alerts/cpuoct2021.html","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com/security-alerts/cpuoct2021.html"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2033394","reference_id":"2033394","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2033394"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/206404?format=json","purl":"pkg:apk/alpine/nodejs@12.22.6-r0?arch=armv7&distroversion=v3.11&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/nodejs@12.22.6-r0%3Farch=armv7&distroversion=v3.11&reponame=main"}],"aliases":["CVE-2021-37713","GHSA-5955-9wpr-37jh"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-1e68-txcx-qkcc"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/43420?format=json","vulnerability_id":"VCID-8ewx-wjzu-mfep","summary":"@npmcli/arborist vulnerable to UNIX Symbolic Link (Symlink) Following\n### Impact\n\nArbitrary File Creation, Arbitrary File Overwrite, Arbitrary Code Execution\n\n`@npmcli/arborist`, the library that calculates dependency trees and manages the `node_modules` folder hierarchy for the npm command line interface, aims to guarantee that package dependency contracts will be met, and the extraction of package contents will always be performed into the expected folder.\n\nThis is, in part, accomplished by resolving dependency specifiers defined in `package.json` manifests for dependencies with a specific name, and nesting folders to resolve conflicting dependencies.\n\nWhen multiple dependencies differ only in the case of their name, Arborist's internal data structure saw them as separate items that could coexist within the same level in the `node_modules` hierarchy.  However, on case-insensitive file systems (such as macOS and Windows), this is not the case.  Combined with a symlink dependency such as `file:/some/path`, this allowed an attacker to create a situation in which arbitrary contents could be written to any location on the filesystem.\n\nFor example, a package `pwn-a` could define a dependency in their `package.json` file such as `\"foo\": \"file:/some/path\"`.  Another package, `pwn-b` could define a dependency such as `FOO: \"file:foo.tgz\"`.  On case-insensitive file systems, if `pwn-a` was installed, and then `pwn-b` was installed afterwards, the contents of `foo.tgz` would be written to `/some/path`, and any existing contents of `/some/path` would be removed.\n\nAnyone using npm v7.20.6 or earlier on a case-insensitive filesystem is potentially affected.\n\n### Patches\n\n2.8.2 (included in npm v7.20.7 and above)\n\n### Fix and Caveats\n\nThere are two parts to the fix:\n\n1. Immediately prior to extraction, if the target folder is not a directory, it is moved aside.  (If the installation fails, filesystem entries moved aside in this manner are moved back as part of the rollback process.)\n2. The `children` map that represents child nodes in the tree is replaced with a case-insensitive map object, such that `node.children.get('foo')` and `node.children.get('FOO')` will return the same object, enabling Arborist to detect and handle this class of tree collision.\n\nThis second item imposes a caveat on case _sensitive_ filesystems where two packages with names which differ only in case may already exist at the same level in the tree, causing unpredictable behavior in this rare edge case.  Note that in such cases, the `package-lock.json` already creates a situation which is hazardous to use on case-sensitive filesystems, and will likely lead to other problems.\n\nIf affected by this caveat, please run `npm update` to rebuild your tree and generate a new `package-lock.json` file.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-39134.json","reference_id":"","reference_type":"","scores":[{"value":"8.1","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-39134.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-39134","reference_id":"","reference_type":"","scores":[{"value":"0.00718","scoring_system":"epss","scoring_elements":"0.72753","published_at":"2026-05-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-39134"},{"reference_url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39134","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39134"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"8.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/npm/arborist","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/npm/arborist"},{"reference_url":"https://github.com/npm/arborist/security/advisories/GHSA-2h3h-q99f-3fhc","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/npm/arborist/security/advisories/GHSA-2h3h-q99f-3fhc"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39134","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39134"},{"reference_url":"https://www.npmjs.com/package/@npmcli/arborist","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.npmjs.com/package/@npmcli/arborist"},{"reference_url":"https://www.oracle.com/security-alerts/cpuoct2021.html","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com/security-alerts/cpuoct2021.html"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1999744","reference_id":"1999744","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1999744"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993407","reference_id":"993407","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993407"},{"reference_url":"https://security.gentoo.org/glsa/202405-29","reference_id":"GLSA-202405-29","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202405-29"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/206404?format=json","purl":"pkg:apk/alpine/nodejs@12.22.6-r0?arch=armv7&distroversion=v3.11&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/nodejs@12.22.6-r0%3Farch=armv7&distroversion=v3.11&reponame=main"}],"aliases":["CVE-2021-39134","GHSA-2h3h-q99f-3fhc"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-8ewx-wjzu-mfep"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/43320?format=json","vulnerability_id":"VCID-a1pj-umbf-zyhe","summary":"Arbitrary File Creation/Overwrite via insufficient symlink protection due to directory cache poisoning using symbolic links\n### Impact\n\nArbitrary File Creation, Arbitrary File Overwrite, Arbitrary Code Execution\n\n`node-tar` aims to guarantee that any file whose location would be modified by a symbolic link is not extracted. This is, in part, achieved by ensuring that extracted directories are not symlinks. Additionally, in order to prevent unnecessary stat calls to determine whether a given path is a directory, paths are cached when directories are created.\n\nThis logic was insufficient when extracting tar files that contained both a directory and a symlink with the same name as the directory, where the symlink and directory names in the archive entry used backslashes as a path separator on posix systems. The cache checking logic used both `\\` and `/` characters as path separators, however `\\` is a valid filename character on posix systems.\n\nBy first creating a directory, and then replacing that directory with a symlink, it was thus possible to bypass node-tar symlink checks on directories, essentially allowing an untrusted tar file to symlink into an arbitrary location and subsequently extracting arbitrary files into that location, thus allowing arbitrary file creation and overwrite.\n\nAdditionally, a similar confusion could arise on case-insensitive filesystems.  If a tar archive contained a directory at `FOO`, followed by a symbolic link named `foo`, then on case-insensitive file systems, the creation of the symbolic link would remove the directory from the filesystem, but _not_ from the internal directory cache, as it would not be treated as a cache hit.  A subsequent file entry within the `FOO` directory would then be placed in the target of the symbolic link, thinking that the directory had already been created. \n\nThese issues were addressed in releases 4.4.16, 5.0.8 and 6.1.7.\n\nThe v3 branch of `node-tar` has been deprecated and did not receive patches for these issues. If you are still using a v3 release we recommend you update to a more recent version of `node-tar`. If this is not possible, a workaround is available below.\n\n### Patches\n\n4.4.16 || 5.0.8 || 6.1.7\n\n### Workarounds\n\nUsers may work around this vulnerability without upgrading by creating a custom filter method which prevents the extraction of symbolic links.\n\n```js\nconst tar = require('tar')\n\ntar.x({\n  file: 'archive.tgz',\n  filter: (file, entry) => {\n    if (entry.type === 'SymbolicLink') {\n      return false\n    } else {\n      return true\n    }\n  }\n})\n```\n\nUsers are encouraged to upgrade to the latest patched versions, rather than attempt to sanitize tar input themselves.\n\n### Fix\n\nThe problem is addressed in the following ways:\n\n1. All paths are normalized to use `/` as a path separator, replacing `\\` with `/` on Windows systems, and leaving `\\` intact in the path on posix systems.  This is performed in depth, at every level of the program where paths are consumed.\n2. Directory cache pruning is performed case-insensitively.  This _may_ result in undue cache misses on case-sensitive file systems, but the performance impact is negligible.\n\n#### Caveat\n\nNote that this means that the `entry` objects exposed in various parts of tar's API will now always use `/` as a path separator, even on Windows systems.  This is not expected to cause problems, as `/` is a valid path separator on Windows systems, but _may_ result in issues if `entry.path` is compared against a path string coming from some other API such as `fs.realpath()` or `path.resolve()`.\n\nUsers are encouraged to always normalize paths using a well-tested method such as `path.resolve()` before comparing paths to one another.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-37701.json","reference_id":"","reference_type":"","scores":[{"value":"8.1","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-37701.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-37701","reference_id":"","reference_type":"","scores":[{"value":"0.00098","scoring_system":"epss","scoring_elements":"0.26938","published_at":"2026-05-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-37701"},{"reference_url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37701","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37701"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37712","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37712"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"8.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/npm/node-tar","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/npm/node-tar"},{"reference_url":"https://github.com/npm/node-tar/security/advisories/GHSA-9r2w-394v-53qc","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/npm/node-tar/security/advisories/GHSA-9r2w-394v-53qc"},{"reference_url":"https://lists.debian.org/debian-lts-announce/2022/12/msg00023.html","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.debian.org/debian-lts-announce/2022/12/msg00023.html"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-37701","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-37701"},{"reference_url":"https://www.debian.org/security/2021/dsa-5008","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.debian.org/security/2021/dsa-5008"},{"reference_url":"https://www.npmjs.com/package/tar","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.npmjs.com/package/tar"},{"reference_url":"https://www.oracle.com/security-alerts/cpuoct2021.html","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.oracle.com/security-alerts/cpuoct2021.html"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1999731","reference_id":"1999731","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1999731"},{"reference_url":"https://security.gentoo.org/glsa/202405-29","reference_id":"GLSA-202405-29","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202405-29"},{"reference_url":"https://access.redhat.com/errata/RHSA-2021:5086","reference_id":"RHSA-2021:5086","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2021:5086"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:0041","reference_id":"RHSA-2022:0041","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:0041"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:0246","reference_id":"RHSA-2022:0246","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:0246"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:0350","reference_id":"RHSA-2022:0350","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:0350"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:4914","reference_id":"RHSA-2022:4914","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:4914"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/206404?format=json","purl":"pkg:apk/alpine/nodejs@12.22.6-r0?arch=armv7&distroversion=v3.11&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/nodejs@12.22.6-r0%3Farch=armv7&distroversion=v3.11&reponame=main"}],"aliases":["CVE-2021-37701","GHSA-9r2w-394v-53qc"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-a1pj-umbf-zyhe"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/43706?format=json","vulnerability_id":"VCID-sm2q-ta8z-33dh","summary":"Arbitrary File Creation/Overwrite via insufficient symlink protection due to directory cache poisoning using symbolic links\n### Impact\nArbitrary File Creation, Arbitrary File Overwrite, Arbitrary Code Execution\n\nnode-tar aims to guarantee that any file whose location would be modified by a symbolic link is not extracted. This is, in part, achieved by ensuring that extracted directories are not symlinks. Additionally, in order to prevent unnecessary stat calls to determine whether a given path is a directory, paths are cached when directories are created.\n\nThis logic was insufficient when extracting tar files that contained two directories and a symlink with names containing unicode values that normalized to the same value. Additionally, on Windows systems, long path portions would resolve to the same file system entities as their 8.3 \"short path\" counterparts. A specially crafted tar archive could thus include directories with two forms of the path that resolve to the same file system entity, followed by a symbolic link with a name in the first form, lastly followed by a file using the second form. It led to bypassing node-tar symlink checks on directories, essentially allowing an untrusted tar file to symlink into an arbitrary location and subsequently extracting arbitrary files into that location, thus allowing arbitrary file creation and overwrite.\n\nThe v3 branch of `node-tar` has been deprecated and did not receive patches for these issues. If you are still using a v3 release we recommend you update to a more recent version of `node-tar`. If this is not possible, a workaround is available below.\n\n### Patches\n\n6.1.9 || 5.0.10 || 4.4.18\n\n### Workarounds\n\nUsers may work around this vulnerability without upgrading by creating a custom filter method which prevents the extraction of symbolic links.\n\n```js\nconst tar = require('tar')\n\ntar.x({\n  file: 'archive.tgz',\n  filter: (file, entry) => {\n    if (entry.type === 'SymbolicLink') {\n      return false\n    } else {\n      return true\n    }\n  }\n})\n```\n\nUsers are encouraged to upgrade to the latest patched versions, rather than attempt to sanitize tar input themselves.\n\n#### Fix\n\nThe problem is addressed in the following ways, when comparing paths in the directory cache and path reservation systems:\n\n1. The `String.normalize('NFKD')` method is used to first normalize all unicode to its maximally compatible and multi-code-point form.\n2. All slashes are normalized to `/` on Windows systems (on posix systems, `\\` is a valid filename character, and thus left intact).\n3. When a symbolic link is encountered on Windows systems, the entire directory cache is cleared.  Collisions related to use of 8.3 short names to replace directories with other (non-symlink) types of entries may make archives fail to extract properly, but will not result in arbitrary file writes.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-37712.json","reference_id":"","reference_type":"","scores":[{"value":"8.1","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-37712.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-37712","reference_id":"","reference_type":"","scores":[{"value":"0.00085","scoring_system":"epss","scoring_elements":"0.24594","published_at":"2026-05-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-37712"},{"reference_url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37701","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37701"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37712","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37712"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"8.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/isaacs/node-tar/commit/1739408d3122af897caefd09662bce2ea477533b","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/isaacs/node-tar/commit/1739408d3122af897caefd09662bce2ea477533b"},{"reference_url":"https://github.com/isaacs/node-tar/commit/2f1bca027286c23e110b8dfc7efc10756fa3db5a","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/isaacs/node-tar/commit/2f1bca027286c23e110b8dfc7efc10756fa3db5a"},{"reference_url":"https://github.com/isaacs/node-tar/commit/3aaf19b2501bbddb145d92b3322c80dcaed3c35f","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/isaacs/node-tar/commit/3aaf19b2501bbddb145d92b3322c80dcaed3c35f"},{"reference_url":"https://github.com/isaacs/node-tar/commit/b6162c7fafe797f856564ef37f4b82747f051455","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/isaacs/node-tar/commit/b6162c7fafe797f856564ef37f4b82747f051455"},{"reference_url":"https://github.com/isaacs/node-tar/commit/bb93ba243746f705092905da1955ac3b0509ba1e","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/isaacs/node-tar/commit/bb93ba243746f705092905da1955ac3b0509ba1e"},{"reference_url":"https://github.com/isaacs/node-tar/commit/d56f790bda9fea807dd80c5083f24771dbdd6eb1","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/isaacs/node-tar/commit/d56f790bda9fea807dd80c5083f24771dbdd6eb1"},{"reference_url":"https://github.com/npm/node-tar","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/npm/node-tar"},{"reference_url":"https://github.com/npm/node-tar/security/advisories/GHSA-qq89-hq3f-393p","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://gith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Symbolic Link (Symlink) Following in @npmcli/arborist\n### Impact\n\nArbitrary File Creation, Arbitrary File Overwrite, Arbitrary Code Execution\n\n`@npmcli/arborist`, the library that calculates dependency trees and manages the node_modules folder hierarchy for the npm command line interface, aims to guarantee that package dependency contracts will be met, and the extraction of package contents will always be performed into the expected folder.\n\nThis is accomplished by extracting package contents into a project's `node_modules` folder.\n\nIf the `node_modules` folder of the root project or any of its dependencies is somehow replaced with a symbolic link, it could allow Arborist to write package dependencies to any arbitrary location on the file system.\n\nNote that symbolic links contained within package artifact contents are filtered out, so another means of creating a `node_modules` symbolic link would have to be employed.\n\n1. A `preinstall` script could replace `node_modules` with a symlink.  (This is prevented by using `--ignore-scripts`.)\n2. An attacker could supply the target with a git repository, instructing them to run `npm install --ignore-scripts` in the root.  This may be successful, because `npm install --ignore-scripts` is typically not capable of making changes outside of the project directory, so it may be deemed safe.\n\n### Patches\n\n2.8.2 (included in npm v7.20.7 and above)\n\n### Workarounds\n\nDo not run `npm install` on untrusted codebases, without first ensuring that the `node_modules` directory in the project is not a symbolic link.\n\n### Fix\n\nPrior to extracting any package contents, the `node_modules` folder into which it is extracted is verified to be a real directory.  If it is not, then it is removed.\n\nCaveat: if you are currently relying on creating a symbolic link to the `node_modules` folder in order to share dependencies between projects, then that will no longer be possible.  Please use the `npm link` command, explicit `file:...` dependencies, and/or `workspaces` to share dependencies in a development 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