CVE-2026-4602
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
jsrsasign: Negative Exponent Handling Leads to Signature Verification Bypass
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 |
|---|---|---|---|
| npm | jsrsasign | <11.1.1 | 11.1.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-4602
- https://github.com/kjur/jsrsasign/pull/650
- https://github.com/kjur/jsrsasign/commit/5ea1c32bb2aa894b4bd29849839afe4f98728195
- https://gist.github.com/Kr0emer/7ecd2be7d17419e4677315ef3758faf5
- https://github.com/kjur/jsrsasign
- https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15371175
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.