CVE-2026-40155
medium
CVSS v3
5.4
CVSS v4 NEW
—
VIR risk
5.4
Description
Auth0 Next.js SDK has Improper Proxy Cache Lookup
Predictions
Exploit likelihood
64%
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 | @auth0/nextjs-auth0 | >=4.12.0,<4.18.0 | 4.18.0 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| auth0 | nextjs-auth0 | {"startIncluding":"4.12.0","endExcluding":"4.18.0"} | 4.18.0 |
References
- https://github.com/auth0/nextjs-auth0/commit/98c36dc306970c2230ea1a32efef431d29b99978
- https://github.com/auth0/nextjs-auth0/releases/tag/v4.18.0
- https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-xq8m-7c5p-c2r6
- https://nvd.nist.gov/vuln/detail/CVE-2026-40155
- https://github.com/auth0/nextjs-auth0
CWEs
CWE-362 CWE-863
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.