CVE-2026-82461: pac4j-oidc before 6.5.6 Privilege Escalation via Unverified Keycloak Access Token
Fixed in 6.5.6 · Affected: pac4j before 6.5.6 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 24% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- pac4j · pac4jbefore 6.5.6
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- pac4j
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-82461 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.