{"id":"CVE-2026-33467","summary":"Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass","details":"Improper Verification of Cryptographic Signature (CWE-347) in Elastic Package Registry could allow an attacker positioned to intercept network traffic, or to otherwise influence the contents served to a self-hosted registry, to substitute a tampered package without the integrity check failing closed.","aliases":["GHSA-r727-5pf6-47r2","GO-2026-5611"],"modified":"2026-07-31T18:30:23.842449141Z","published":"2026-04-28T21:15:24.551Z","related":["openSUSE-SU-2026:21483-1"],"database_specific":{"cna_assigner":"elastic","cwe_ids":["CWE-347"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33467.json","unresolved_ranges":[{"extracted_events":[{"introduced":"0.1.0"},{"last_affected":"1.37.0"}],"source":"AFFECTED_FIELD"}]},"references":[{"type":"WEB","url":"https://discuss.elastic.co/t/elastic-package-registry-1-38-0-security-update-esa-2026-27/386081"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33467.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33467"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/elastic/package-registry","events":[{"introduced":"0"},{"fixed":"662a9d5a9ea1102e30de6a549b2bee14b5a1a189"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:elastic:elastic_package_registry:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.38.0"}]}}],"versions":["v1.37.0","v1.36.0","v1.35.0","v1.34.0","v1.33.0","v1.32.1","v1.32.0","v1.31.1","v1.31.0","v1.30.1","v1.30.0","v1.29.0","v1.28.0","v1.27.0","v1.26.0","v1.25.0","v1.24.1","v1.24.0","v1.23.1","v1.23.0","v1.22.0","v1.21.0","v1.20.0","v1.19.0","v1.18.0","v1.17.0","v1.16.3","v1.16.2","v1.16.1","v1.16.0","v1.15.0","v1.14.0","v1.13.0","v1.12.1","v1.12.0","v1.11.0","v1.10.0","v1.9.0","v1.8.0","v1.7.0","v1.6.0","v1.5.1","v1.5.0","v1.4.1","v1.4.0","v1.3.0","v1.2.0","v1.1.0","v1.0.0","v0.21.0","v0.20.0","v0.19.0","v0.18.0","v0.17.0","v0.16.0","v0.15.0","v0.14.0","v0.13.0","v0.12.1","v0.12.0","v0.11.0","v0.10.0","v0.9.0","v0.8.0","v0.7.1","v0.7.0","v0.6.0","v0.4.0","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33467.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}