CVE-2026-82462: pac4j-oidc before 6.5.6 Authentication Bypass via Access Token Substitution
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 9% of scored CVEs
DescriptionCVE.org
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.
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-2026-82462 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.