CVE-2026-22037
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
@fastify/express vulnerable to Improper Handling of URL Encoding (Hex Encoding)
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 | @fastify/express | <4.0.3 | 4.0.3 |
References
- https://github.com/fastify/fastify-express/security/advisories/GHSA-g6q3-96cp-5r5m
- https://nvd.nist.gov/vuln/detail/CVE-2026-22037
- https://github.com/fastify/fastify-express/commit/dc02a3fe1387f945143f22597baa42557d549a40
- https://github.com/fastify/fastify-express
- https://github.com/fastify/fastify-express/releases/tag/v4.0.3
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.