CVE-2025-29927
unknown
CVSS v3
—
CVSS v4 NEW
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VIR risk
1.0
Description
Authorization Bypass in Next.js Middleware
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.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Next.js Middleware 15.2.2 - Authorization Bypass
Source code queued for fetch — refresh in a moment.
References
- https://github.com/vercel/next.js/security/advisories/GHSA-f82v-jwr5-mffw
- https://nvd.nist.gov/vuln/detail/CVE-2025-29927
- https://github.com/vercel/next.js/commit/52a078da3884efe6501613c7834a3d02a91676d2
- https://github.com/vercel/next.js/commit/5fd3ae8f8542677c6294f32d18022731eab6fe48
- https://github.com/vercel/next.js
- https://github.com/vercel/next.js/releases/tag/v12.3.5
- https://github.com/vercel/next.js/releases/tag/v13.5.9
- https://security.netapp.com/advisory/ntap-20250328-0002
- https://vercel.com/changelog/vercel-firewall-proactively-protects-against-vulnerability-with-middleware
- http://www.openwall.com/lists/oss-security/2025/03/23/3
- http://www.openwall.com/lists/oss-security/2025/03/23/4
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.