{"id":"CVE-2026-28407","aliases":["GHSA-945p-3jhm-6rcp","GO-2026-4577"],"url":"https://o3.security/vulnerability/CVE-2026-28407","summary":"malcontent's nested archive extraction failure can drop content from scan inputs","details":"malcontent is software for discovering supply-chain compromises through context, differential analysis, and YARA. Prior to version 1.21.0, malcontent would remove nested archives which failed to extract which could potentially leave malicious content. A better approach is to preserve these archives so that malcontent can attempt a best-effort scan of the archive bytes. Version 1.21.0 fixes the issue.","published":"2026-02-27T21:28:06.258Z","modified":"2026-08-12T03:51:38.008008743Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/chainguard-dev/malcontent","fixedVersion":"1.21.0"}],"fix":{"url":"https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9","label":"chainguard-dev/malcontent@356c566"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28407.json"},{"type":"ADVISORY","url":"https://github.com/chainguard-dev/malcontent/security/advisories/GHSA-945p-3jhm-6rcp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28407"},{"type":"FIX","url":"https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9"},{"type":"FIX","url":"https://github.com/chainguard-dev/malcontent/pull/1383"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:38.008008743Z"}}