CVE-2026-41248

critical
Published 2026-04-24 ยท Modified 2026-05-05
CVSS v3
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
9.1

Description

Official Clerk JavaScript SDKs: Middleware-based route protection bypass

Predictions

Exploit likelihood
94%
Patch ETA
โ€”

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 โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

EcosystemPackageVulnerableFixed
npm npm@clerk/nextjs>=5.0.0,<5.7.65.7.6
npm npm@clerk/nuxt>=1.1.0,<1.13.281.13.28
npm npm@clerk/astro>=0.0.1,<1.5.71.5.7
npm npm@clerk/shared>=2.20.17,<2.22.12.22.1
npm npm@clerk/nextjs>=6.0.0-snapshot.vb87a27f,<6.39.26.39.2
npm npm@clerk/nextjs>=7.0.0,<7.2.17.2.1
npm npm@clerk/nuxt>=2.0.0,<2.2.22.2.2
npm npm@clerk/astro>=2.0.0-snapshot.v20241206174604,<2.17.102.17.10
npm npm@clerk/astro>=3.0.0,<3.0.153.0.15
npm npm@clerk/shared>=3.0.0-canary.v20250225091530,<3.47.43.47.4
npm npm@clerk/shared>=4.0.0,<4.8.14.8.1

References

CWEs

CWE-436 CWE-863

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.