CVE-2026-45363
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
8.0
Description
ruby-jwt: Empty-key HMAC bypass; cross-language sibling of CVE-2026-44351
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.
References
- https://www.cve.org/CVERecord?id=CVE-2026-45363
- https://github.com/jwt/ruby-jwt/security/advisories/GHSA-c32j-vqhx-rx3x
- https://github.com/jwt/ruby-jwt/commit/db560b769a07bd9724e77ff505011ac01872106f
- https://github.com/jwt/ruby-jwt
- https://github.com/jwt/ruby-jwt/releases/tag/v3.2.0
- https://github.com/advisories/GHSA-c32j-vqhx-rx3x
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.