{"id":"CVE-2026-28407","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-28407","generatedAt":"2026-10-28T07:04:45.092Z","title":"Prior to version 1.21.0, malcontent would remove nested archives which failed to extract which could potentially leave malicious content.","description":"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":"2026-02-27T22:16:24.000Z","lastModified":"2026-06-17T10:28:34.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-703"],"affected":["chainguard/malcontent"],"epss":{"score":0.00411,"percentile":0.35111,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/chainguard-dev/malcontent/pull/1383","tags":["Issue Tracking","Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/chainguard-dev/malcontent/security/advisories/GHSA-945p-3jhm-6rcp","tags":["Patch","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-28407","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}