Description
auth0/node-jws is a JSON Web Signature implementation for Node.js. In versions 3.2.2 and earlier and version 4.0.0, auth0/node-jws has an improper signature verification vulnerability when using the HS256 algorithm under specific conditions. Applications are affected when they use the jws.createVerify() function for HMAC algorithms and use user-provided data from the JSON Web Signature protected header or payload in HMAC secret lookup routines, which can allow attackers to bypass signature verification. This issue has been patched in versions 3.2.3 and 4.0.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| auth0 | node-jws | < 3.2.3, >= 4.0.0, <= 4.0.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | jitsucom-jitsu +2 | 2.11.0-r10 | — |
| Wolfi rolling | kubeflow-centraldashboard | 1.10.0-r7 | — |
| Wolfi rolling | kubeflow-pipelines +11 | 2.15.0-r2 | — |
| Wolfi rolling | langfuse-3 +2 | 3.138.0-r0 | — |
| Wolfi rolling | renovate | 42.39.1-r0 | — |
| Wolfi rolling | saf | 1.5.2-r0 | — |
| Wolfi rolling | sqlpad +1 | 7.5.7-r4 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
-
jedisct1/CVE-2025-65945-poc ★ 4 · Dec 17, 2025
PoC for CVE-2025-65945 (Improper Verification of Cryptographic Signature in node-jws)
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | jws | < 3.2.3 | 3.2.3 | GHSA-869p-cjfg-cm3x |
| npm | jws | >= 4.0.0, < 4.0.1 | 4.0.1 | GHSA-869p-cjfg-cm3x |
Advisories 2
- WID-SEC-2026-0105 Red Hat Developer Hub: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 15, 2026
- WID-SEC-2025-2909 IBM App Connect Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 7, 2026