{"cve":"CVE-2026-33467","nvd":{"published":"2026-04-28T22:16:48.823","modified":"2026-07-24T23:10:00.563","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","score":5.9},"cwes":["CWE-347"],"references":["https://discuss.elastic.co/t/elastic-package-registry-1-38-0-security-update-esa-2026-27/386081"],"products":["elastic:elastic_package_registry"],"source":"nvd","synced_at":"2026-10-19T22:33:09.003606135+00:00"},"epss":{"cve":"CVE-2026-33467","score":0.00136,"percentile":0.03034,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-r727-5pf6-47r2","url":"https://osv.dev/vulnerability/GHSA-r727-5pf6-47r2","summary":"Elastic Package Registry has Improper Verification of Cryptographic Signature ","modified":"2026-06-25T23:11:44.895104444Z","packages":[{"ecosystem":"Go","name":"github.com/elastic/package-registry","purl":"pkg:golang/github.com/elastic/package-registry","ranges":["<1.38.0"],"fixed":["1.38.0"]}]},{"id":"GO-2026-5611","url":"https://osv.dev/vulnerability/GO-2026-5611","summary":"Elastic Package Registry has Improper Verification of Cryptographic Signature in github.com/elastic/package-registry","modified":"2026-06-25T23:01:34.660184012Z","packages":[{"ecosystem":"Go","name":"github.com/elastic/package-registry","purl":"pkg:golang/github.com/elastic/package-registry","ranges":["<1.38.0"],"fixed":["1.38.0"]}]}],"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."]}