CVE-2021-44878
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
Description
Pac4j token validation bypass if OpenID Connect provider supports none algorithm
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.pac4j:pac4j-oidc | <4.5.5 | 4.5.5 |
| Maven | org.pac4j:pac4j-oidc | >=5.0,<5.3.1 | 5.3.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-44878
- https://github.com/pac4j/pac4j/commit/09684e0de1c4753d22c53b8135d4ef61cfda76f7
- https://github.com/pac4j/pac4j/commit/22b82ffd702a132d9f09da60362fc6264fc281ae
- https://github.com/pac4j/pac4j/commit/9c87bbc536ed5d05f940ae015403120df2935589
- https://github.com/pac4j/pac4j
- https://openid.net/specs/openid-connect-core-1_0.html#IDToken
- https://www.pac4j.org/4.5.x/docs/release-notes.html
- https://www.pac4j.org/blog/cve_2021_44878_is_this_serious.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.