Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/969135?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/969135?format=api", "purl": "pkg:apk/alpine/ruby@3.4.9-r0?arch=armhf&distroversion=v3.23&reponame=main", "type": "apk", "namespace": "alpine", "name": "ruby", "version": "3.4.9-r0", "qualifiers": { "arch": "armhf", "distroversion": "v3.23", "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/90861?format=api", "vulnerability_id": "VCID-sfzh-hn56-hbak", "summary": "Buffer overflow vulnerability in Zlib::GzipReader\nA buffer overflow vulnerability exists in Zlib::GzipReader.\nThis vulnerability has been assigned the CVE identifier\nCVE-2026-27820. We recommend upgrading the zlib gem.\n\n## Details\n\nThe zstream_buffer_ungets function prepends caller-provided bytes\nahead of previously produced output but fails to guarantee the\nbacking Ruby string has enough capacity before the memmove shifts\nthe existing data. This can lead to memory corruption when the\nbuffer length exceeds capacity.\n\n## Recommended action\n\nWe recommend to update the zlib gem to version 3.2.3 or later.\nIn order to ensure compatibility with bundled version in older\nRuby series, you may update as follows instead:\n\n* For Ruby 3.2 users: Update to zlib 3.0.1\n* For Ruby 3.3 users: Update to zlib 3.1.2\n* You can use gem update zlib to update it. If you are using\n bundler, please add gem \"zlib\", \">= 3.2.3\" to your Gemfile.\n\n## Affected versions:\n\nzlib gem 3.2.2 or lower\n\n## Credits\n\nThanks to calysteon for reporting this issue. Also thanks to\nnobu for creating the patch.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-27820.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.6", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-27820.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-27820", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00013", "scoring_system": "epss", "scoring_elements": "0.02076", "published_at": "2026-05-14T12:55:00Z" }, { "value": "0.00013", "scoring_system": "epss", "scoring_elements": "0.0207", "published_at": "2026-05-12T12:55:00Z" }, { "value": "0.00013", "scoring_system": "epss", "scoring_elements": "0.02095", "published_at": "2026-05-11T12:55:00Z" }, { "value": "0.00013", "scoring_system": "epss", "scoring_elements": "0.02096", "published_at": "2026-05-09T12:55:00Z" }, { "value": "0.00013", "scoring_system": "epss", "scoring_elements": "0.02077", "published_at": "2026-05-07T12:55:00Z" }, { "value": "0.00013", "scoring_system": "epss", "scoring_elements": "0.02126", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00013", "scoring_system": "epss", "scoring_elements": "0.02079", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.00014", "scoring_system": "epss", "scoring_elements": "0.02466", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00018", "scoring_system": "epss", "scoring_elements": "0.04667", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00018", "scoring_system": "epss", "scoring_elements": "0.04633", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00042", "scoring_system": "epss", "scoring_elements": "0.12746", "published_at": "2026-04-18T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-27820" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-27820", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-27820" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/zlib/CVE-2026-27820.yml", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/zlib/CVE-2026-27820.yml" }, { "reference_url": "https://github.com/ruby/zlib", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/ruby/zlib" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27820", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27820" }, { "reference_url": "https://www.ruby-lang.org/en/news/2026/03/05/buffer-overflow-zlib-cve-2026-27820", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://www.ruby-lang.org/en/news/2026/03/05/buffer-overflow-zlib-cve-2026-27820" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1134341", "reference_id": "1134341", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1134341" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2459002", "reference_id": "2459002", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2459002" }, { "reference_url": "https://hackerone.com/reports/3467067", "reference_id": "3467067", "reference_type": "", "scores": [ { "value": "1.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U" }, { "value": "5.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-16T18:20:13Z/" } ], "url": "https://hackerone.com/reports/3467067" }, { "reference_url": "https://github.com/advisories/GHSA-g857-hhfv-j68w", "reference_id": "GHSA-g857-hhfv-j68w", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-g857-hhfv-j68w" }, { "reference_url": "https://github.com/ruby/zlib/security/advisories/GHSA-g857-hhfv-j68w", "reference_id": "GHSA-g857-hhfv-j68w", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "1.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U" }, { "value": "5.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-16T18:20:13Z/" } ], "url": "https://github.com/ruby/zlib/security/advisories/GHSA-g857-hhfv-j68w" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2026:7305", "reference_id": "RHSA-2026:7305", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:7305" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2026:7307", "reference_id": "RHSA-2026:7307", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:7307" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2026:8838", "reference_id": "RHSA-2026:8838", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:8838" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/969135?format=api", "purl": "pkg:apk/alpine/ruby@3.4.9-r0?arch=armhf&distroversion=v3.23&reponame=main", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/ruby@3.4.9-r0%3Farch=armhf&distroversion=v3.23&reponame=main" } ], "aliases": [ "CVE-2026-27820", "GHSA-g857-hhfv-j68w" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-sfzh-hn56-hbak" } ], "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/packages/pkg:apk/alpine/ruby@3.4.9-r0%3Farch=armhf&distroversion=v3.23&reponame=main" }