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CVE-2026-34076

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 from versions 3.0.0 to before 3.2.3, and @clerk/fastify from versions 3.1.0 to before 3.1.5, the clerkFrontendApiProxy function in @clerk/backend is vulnerable to Server-Side Request Forgery (SSRF). An unauthenticated attacker can craft a request path that causes the proxy to send the application's
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6d4026f4e4c9c6069ebfef89593b33abb06a5a77a613532b351a65a999579d72
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"javascript","vendor":"clerk","versions":[{"status":"affected","version":"@clerk/hono >= 0.1.0, < 0.1.5"},{"status":"affected","version":"@clerk/express >= 2.0.0, < 2.0.7"},{"status":"affected","version":"@clerk/backend >= 3.0.0, < 3.2.3"},{"status":"affected","version":"@clerk/fastify >= 3.1.0, < 3.1.5"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:26b349066dc008b0d404503bf4f09139d173568b8ccf064cbe04279054d19edd · sha256:352fb5a4a45854aa… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:26b349066dc008b0d404503bf4f09139d173568b8ccf064cbe04279054d19edd · sha256:352fb5a4a45854aa… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:26b349066dc008b0d404503bf4f09139d173568b8ccf064cbe04279054d19edd · sha256:352fb5a4a45854aa… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/clerk/javascript/security/advisories/GHSA-gjxx-92w9-8v8f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/clerk/javascript/security/advisories/GHSA-gjxx-92w9-8v8f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:26b349066dc008b0d404503bf4f09139d173568b8ccf064cbe04279054d19edd · sha256:352fb5a4a45854aa… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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