{"id":"CVE-2025-24976","summary":"Distribution's token authentication allows attacker to inject an untrusted signing key in a JWT","details":"Distribution is a toolkit to pack, ship, store, and deliver container content. Systems running registry versions 3.0.0-beta.1 through 3.0.0-rc.2 with token authentication enabled may be vulnerable to an issue in which token authentication allows an attacker to inject an untrusted signing key in a JSON web token (JWT). The issue lies in how the JSON web key (JWK) verification is performed. When a JWT contains a JWK header without a certificate chain, the code only checks if the KeyID (`kid`) matches one of the trusted keys, but doesn't verify that the actual key material matches. A fix for the issue is available at commit 5ea9aa028db65ca5665f6af2c20ecf9dc34e5fcd and expected to be a part of version 3.0.0-rc.3. There is no way to work around this issue without patching if the system requires token authentication.","aliases":["GHSA-phw4-mc57-4hwc","GO-2025-3460"],"modified":"2026-03-20T12:41:42.121988Z","published":"2025-02-11T15:48:59.700Z","related":["CGA-96m3-mr7p-mx3f","openSUSE-SU-2025:14889-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/24xxx/CVE-2025-24976.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-639"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/24xxx/CVE-2025-24976.json"},{"type":"ADVISORY","url":"https://github.com/distribution/distribution/security/advisories/GHSA-phw4-mc57-4hwc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-24976"},{"type":"FIX","url":"https://github.com/distribution/distribution/commit/f4a500caf68169dccb0b54cb90523e68ee1ac2be"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/distribution/distribution","events":[{"introduced":"c709432b917488208fa78a7932843d91eca59801"},{"fixed":"f4a500caf68169dccb0b54cb90523e68ee1ac2be"}]}],"versions":["v3.0.0-beta.1","v3.0.0-rc.1","v3.0.0-rc.2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-24976.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U"}]}