{"cve":"CVE-2026-28407","nvd":{"published":"2026-02-27T22:16:23.680","modified":"2026-06-17T10:28:33.893","status":"Analyzed","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.","cvss_v4":{"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","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-703"],"references":["https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9","https://github.com/chainguard-dev/malcontent/pull/1383","https://github.com/chainguard-dev/malcontent/security/advisories/GHSA-945p-3jhm-6rcp"],"products":["chainguard:malcontent"],"source":"nvd","synced_at":"2026-10-19T22:24:17.937441719+00:00"},"epss":{"cve":"CVE-2026-28407","score":0.00411,"percentile":0.35322,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-945p-3jhm-6rcp","url":"https://osv.dev/vulnerability/GHSA-945p-3jhm-6rcp","summary":"malcontent: Nested archive extraction failure can drop content from scan inputs","modified":"2026-03-23T04:56:17.951004640Z","packages":[{"ecosystem":"Go","name":"github.com/chainguard-dev/malcontent","purl":"pkg:golang/github.com/chainguard-dev/malcontent","ranges":["<1.21.0"],"fixed":["1.21.0"]}]},{"id":"GO-2026-4577","url":"https://osv.dev/vulnerability/GO-2026-4577","summary":"malcontent: Nested archive extraction failure can drop content from scan inputs in github.com/chainguard-dev/malcontent","modified":"2026-03-23T04:52:46.690271Z","packages":[{"ecosystem":"Go","name":"github.com/chainguard-dev/malcontent","purl":"pkg:golang/github.com/chainguard-dev/malcontent","ranges":["<1.21.0"],"fixed":["1.21.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}