7 CVEs matched to Clerk by name in NVD, none on CISA's Known Exploited list.
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1 CVE has an estimated 10%-or-higher chance of having already been exploited despite not appearing on CISA's KEV catalog. KEV is a curated record of confirmed cases rather than a complete census, so this is where its coverage is likely thinnest — an estimate from EPSS history, not a finding. Based on a median of 2 EPSS observations per CVE.
Likely-exploited estimates here rest on a median of 2 EPSS observations per CVE — too little history to read as a trend yet. It deepens daily as scores are collected.
NetCommons 2.4.2.1 and earlier allows remote authenticated secretariat (aka CLERK) users to gain privileges by creating a SYSTEM_ADMIN account.
The Clerk WordPress plugin before 4.0.0 is affected by time-based attacks in the validation function for all API requests due to the usage of comparison operato…
Clerk helps developers build user management. Unauthorized access or privilege escalation due to a logic flaw in auth() in the App Router or getAuth() in the Pa…
| Year | Critical | High | Medium | Low | Unscored | Total |
|---|---|---|---|---|---|---|
| 2026 | 1 | 2 | 0 | 0 | 0 | 3 |
| 2025 | 0 | 1 | 0 | 0 | 0 | 1 |
| 2024 | 1 | 0 | 0 | 0 | 0 | 1 |
| 2022 | 0 | 1 | 0 | 0 | 0 | 1 |
| 2016 | 0 | 1 | 0 | 0 | 0 | 1 |
EPSS is FIRST's estimate of the chance a CVE is exploited in the next 30 days. It measures likelihood, not impact.
| CVE | EPSS | Percentile |
|---|---|---|
| CVE-2016-4813 | 1.9% | 79% |
| CVE-2022-3907 | 0.9% | 60% |
| CVE-2024-22206 | 0.7% | 52% |
| CVE-2026-41248 | 0.5% | 44% |
| CVE-2026-42349 | 0.4% | 36% |
| CVE-2026-34076 | 0.4% | 33% |
| CVE-2025-53548 | 0.2% | 6.2% |
Clerk JavaScript is the official JavaScript repository for Clerk authentication. has(), auth.protect(), and related authorization predicates in @clerk/shared, @clerk/nextjs, @clerk/backend, and other …
Clerk JavaScript is the official JavaScript repository for Clerk authentication. createRouteMatcher in @clerk/nextjs, @clerk/nuxt, and @clerk/astro can be bypassed by certain crafted requests, allowin…
Clerk helps developers build user management. Applications that use the verifyWebhook() helper to verify incoming Clerk webhooks are susceptible to accepting im…
Clerk JavaScript is the official JavaScript repository for Clerk authentication. In @clerk/hono from versions 0.1.0 to before 0.1.5, @clerk/express from version…
Clerk JavaScript is the official JavaScript repository for Clerk authentication. In @clerk/hono from versions 0.1.0 to before 0.1.5, @clerk/express from versions 2.0.0 to before 2.0.7, @clerk/backend …
Clerk helps developers build user management. Applications that use the verifyWebhook() helper to verify incoming Clerk webhooks are susceptible to accepting improperly signed webhook events. The issu…
Clerk helps developers build user management. Unauthorized access or privilege escalation due to a logic flaw in auth() in the App Router or getAuth() in the Pages Router. This vulnerability was patch…
The Clerk WordPress plugin before 4.0.0 is affected by time-based attacks in the validation function for all API requests due to the usage of comparison operators to verify API keys against the ones s…
NetCommons 2.4.2.1 and earlier allows remote authenticated secretariat (aka CLERK) users to gain privileges by creating a SYSTEM_ADMIN account.