{"url":"http://public2.vulnerablecode.io/api/packages/453944?format=json","purl":"pkg:apk/alpine/rust@1.94.0-r1?arch=armv7&distroversion=edge&reponame=main","type":"apk","namespace":"alpine","name":"rust","version":"1.94.0-r1","qualifiers":{"arch":"armv7","distroversion":"edge","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/24628?format=json","vulnerability_id":"VCID-qj1y-b8m1-hyfm","summary":"tar-rs `unpack_in` can chmod arbitrary directories by following symlinks\n## Summary\n\nWhen unpacking a tar archive, the `tar` crate's `unpack_dir` function uses `fs::metadata()` to check whether a path that already exists is a directory. Because `fs::metadata()` follows symbolic links, a crafted tarball containing a symlink entry followed by a directory entry with the same name causes the crate to treat the symlink target as a valid existing directory — and subsequently apply `chmod` to it. This allows an attacker to modify the permissions of arbitrary directories outside the extraction root.\n\n## Reproducer\n\nA malicious tarball contains two entries: (1) a symlink `foo` pointing to an arbitrary external directory, and (2) a directory entry `foo/.` (or just `foo`). When unpacked, `create_dir(\"foo\")` fails with `EEXIST` because the symlink is already on disk. The `fs::metadata()` check then follows the symlink, sees a directory at the target, and allows processing to continue. The directory entry's mode bits are then applied via `chmod`, which also follows the symlink — modifying the permissions of the external target directory.\n\n## Fix \n\nThe fix is very simple, we now use `fs::symlink_metadata()` in `unpack_dir`, so symlinks are detected and rejected rather than followed.\n\n## Credit\n\nThis issue was reported by @xokdvium - thank you!","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33056.json","reference_id":"","reference_type":"","scores":[{"value":"4.4","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33056.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-33056","reference_id":"","reference_type":"","scores":[{"value":"0.00011","scoring_system":"epss","scoring_elements":"0.01432","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00011","scoring_system":"epss","scoring_elements":"0.01431","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00011","scoring_system":"epss","scoring_elements":"0.0144","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00011","scoring_system":"epss","scoring_elements":"0.01448","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00011","scoring_system":"epss","scoring_elements":"0.01446","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00011","scoring_system":"epss","scoring_elements":"0.01441","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00011","scoring_system":"epss","scoring_elements":"0.01436","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00011","scoring_system":"epss","scoring_elements":"0.01422","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00012","scoring_system":"epss","scoring_elements":"0.01946","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00012","scoring_system":"epss","scoring_elements":"0.01912","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00012","scoring_system":"epss","scoring_elements":"0.01916","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00012","scoring_system":"epss","scoring_elements":"0.01922","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00017","scoring_system":"epss","scoring_elements":"0.04072","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00017","scoring_system":"epss","scoring_elements":"0.04098","published_at":"2026-05-07T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-33056"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-33056","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-33056"},{"reference_url":"https://github.com/alexcrichton/tar-rs","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"5.1","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/alexcrichton/tar-rs"},{"reference_url":"https://github.com/alexcrichton/tar-rs/commit/17b1fd84e632071cb8eef9d3709bf347bd266446","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"5.1","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-20T12:59:15Z/"}],"url":"https://github.com/alexcrichton/tar-rs/commit/17b1fd84e632071cb8eef9d3709bf347bd266446"},{"reference_url":"https://github.com/alexcrichton/tar-rs/security/advisories/GHSA-j4xf-2g29-59ph","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"5.1","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-20T12:59:15Z/"}],"url":"https://github.com/alexcrichton/tar-rs/security/advisories/GHSA-j4xf-2g29-59ph"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33056","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"5.1","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33056"},{"reference_url":"https://rustsec.org/advisories/RUSTSEC-2026-0067.html","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},{"value":"5.1","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR: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