VULNERABILITY INTELLIGENCE
CVE-2026-82462
CVSS score6.5 MEDIUM
EPSS probability0.19%
CISA KEVNot currently listed
Published2026-08-29
Last modified2026-09-10
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Description
pac4j-oidc before 6.5.6 accepts OIDC callbacks carrying only an access token without authorization code or ID token validation. Attackers can substitute access tokens minted for other clients to create authenticated sessions without proper issuer, audience, nonce, or subject verification.
Weakness classification
- disclosure@vulncheck.com: CWE-345