{"action":"Upgrade lemur to 1.9.2 or later.","affected":[{"fixed":"1.9.2","introduced":"0"}],"component":"lemur","cve_ids":["CVE-2026-55166"],"ecosystem":"PyPI","epss":0.00287,"exploited":false,"fixed_versions":["1.9.2"],"ghsa_id":"GHSA-v2wp-frmc-5q3v","id":"tcs_01M5KH83E65YNQFX6WR7A8CQNB","modified_at":"2026-07-01T21:45:31.174888055Z","published_at":"2026-06-29T11:50:52.547435Z","references":["https://osv.dev/vulnerability/PYSEC-2026-384","https://github.com/Netflix/lemur/security/advisories/GHSA-v2wp-frmc-5q3v","https://github.com/Netflix/lemur","https://github.com/Netflix/lemur/releases/tag/v1.9.2","https://pypi.org/project/lemur","https://github.com/advisories/GHSA-v2wp-frmc-5q3v","https://nvd.nist.gov/vuln/detail/CVE-2026-55166"],"severity":{"label":"critical","score":9.9},"sources":[{"source":"osv","source_id":"PYSEC-2026-384","url":"https://osv.dev/vulnerability/PYSEC-2026-384"}],"summary":"Lemur: ACME SSRF + creator-equality IDOR lead to AWS IAM/PKI compromise"}