CVE-2026-41248

The CVE-2026-41248 affects Clerk JavaScript repositories: createRouteMatcher in @clerk/nextjs, @clerk/nuxt, and @clerk/astro can be bypassed by crafted requests, bypassing middleware gating and reaching downstream handlers. Affected fixes are: @clerk/astro 1.5.7, 2.17.10, 3.0.15; @clerk/nextjs 5....

@aurora-nexus/aurora-nexus-design-system (0.2.0), @fireproof/core-protocols-dashboard (>=0.24.3-dev-20261224, <=0.24.12) +6 more potentially affected by CVE-2026-41248 via @clerk/shared (>=3.36.0, <=3.45.1)

@clerk/shared NPM version =3.36.0, =0.24.3-dev-20261224, =0.24.3-dev-20261224, =0.24.3-dev-20261224, =0.0.14, =0.18.25-dev, =0.24.3-dev-20261224, =0.18.25-dev, =0.18.28-dev Source cves: CVE-2026-41248 Source advisory: OSV:GHSA-VQX2-FGX2-5WQ9...

@bentwnghk/chat (>=1.91.2, <=1.91.6), @lobehub/chat (>=1.49.5, <=1.49.12) +2 more potentially affected by CVE-2026-41248 via @clerk/nextjs (>=6.3.1, <=6.28.1)

@clerk/nextjs NPM version =6.3.1, =1.91.2, =1.49.5, =0.0.2, =0.17.0-alpha.9, =0.17.3-centauri.0 Source cves: CVE-2026-41248 Source advisory: OSV:GHSA-VQX2-FGX2-5WQ9...

@clerk/agent-toolkit (>=0.2.9-canary.v20251211104600, <=0.3.14-snapshot.v20260414205636), @clerk/astro (>=3.0.0-canary.v20251211104600, <=3.0.14-snapshot.v20260414205636) +43 more potentially affected by CVE-2026-41248 via @clerk/shared (>=4.0.0, <=4.8.0-snapshot.v20260414205636)

@clerk/shared NPM version =4.0.0, =0.2.9-canary.v20251211104600, =3.0.0-canary.v20251211104600, =3.0.0-canary.v20251211104600, =3.0.0-canary.v20251211104600, =3.0.0-snapshot.v20251216175437, =3.0.0-canary.v20251211104600, =0.4.26-snapshot.v20260226165729, =2.0.0-canary.v20251211104600,...

@bentwnghk/chat (>=1.91.2, <=1.91.6), @lobehub/chat (>=1.49.5, <=1.49.12) +2 more potentially affected by CVE-2026-41248 via @clerk/nextjs (>=6.3.1, <=6.28.1)

@clerk/nextjs NPM version =6.3.1, =1.91.2, =1.49.5, =0.0.2, =0.17.0-alpha.9, =0.17.3-centauri.0 Source cves: CVE-2026-41248 Source advisory: SNYK:JS-CLERKNEXTJS-16098250...

@clerk/agent-toolkit (>=0.2.9-canary.v20251211104600, <=0.3.14-snapshot.v20260414205636), @clerk/astro (>=3.0.0-canary.v20251211104600, <=3.0.14-snapshot.v20260414205636) +43 more potentially affected by CVE-2026-41248 via @clerk/shared (>=4.0.0, <=4.8.0-snapshot.v20260414205636)

@clerk/shared NPM version =4.0.0, =0.2.9-canary.v20251211104600, =3.0.0-canary.v20251211104600, =3.0.0-canary.v20251211104600, =3.0.0-canary.v20251211104600, =3.0.0-snapshot.v20251216175437, =3.0.0-canary.v20251211104600, =0.4.26-snapshot.v20260226165729, =2.0.0-canary.v20251211104600,...

@bentwnghk/chat (>=1.45.5, <=1.45.6), @clerk/elements (0.0.2-snapshot.vc65ad98) +2 more potentially affected by CVE-2026-41248 via @clerk/nextjs (>=5.0.1-snapshot.vc65ad98, <=5.7.5)

@clerk/nextjs NPM version =5.0.1-snapshot.vc65ad98, =1.45.5, =1.2.8, =1.2.9 - @spike-npm-land/code 0.9.55 Source cves: CVE-2026-41248 Source advisory: SNYK:JS-CLERKNEXTJS-16098250...