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THREAT OPS › Threat News › [NVD] CVE-2026-82461 (HIGH 8.1) — pac4j-oidc before 6.5.6 fails to verify access token signatures, issuers, audiences, or expiry when extracting Keycloak realm and client roles. Attackers can forge access tokens with administrative roles paired with valid ID tokens to bypass authorization checks in applications r

[NVD] CVE-2026-82461 (HIGH 8.1) — pac4j-oidc before 6.5.6 fails to verify access token signatures, issuers, audiences, or expiry when extracting Keycloak realm and client roles. Attackers can forge access tokens with administrative roles paired with valid ID tokens to bypass authorization checks in applications r

mednvdPublished 2026-08-29

CVE-2026-82461 CVSS: 8.1 HIGH Published: 2026-08-29T17:17:58.207

pac4j-oidc before 6.5.6 fails to verify access token signatures, issuers, audiences, or expiry when extracting Keycloak realm and client roles. Attackers can forge access tokens with administrative roles paired with valid ID tokens to bypass authorization checks in applications relying on pac4j role validation.

Indicators of compromise

CVE-2026-82461cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-82461