CVE-2026-21637
CVE Details
Visit the official vulnerability details page for CVE-2026-21637 to learn more.
Initial Publication
01/20/2026
Last Update
01/30/2026
Third Party Dependency
nodejs
NIST CVE Summary
A flaw in Node.js TLS error handling allows remote attackers to crash or exhaust resources of a TLS server when `pskCallback` or `ALPNCallback` are in use. Synchronous exceptions thrown during these callbacks bypass standard TLS error handling paths (tlsClientError and error), causing either immediate process termination or silent file descriptor leaks that eventually lead to denial of service. Because these callbacks process attacker-controlled input during the TLS handshake, a remote client can repeatedly trigger the issue. This vulnerability affects TLS servers using PSK or ALPN callbacks across Node.js versions where these callbacks throw without being safely wrapped.
CVE Severity
Our Official Summary
Investigation is ongoing to determine how this vulnerability affects our products.
Status
Analyzed
Affected Products & Versions
| Version | PaletteAI | PaletteAI VerteX |
|---|---|---|
| 0.7.1 | ⚠️ Impacted | ⚠️ Impacted |
| 0.6.6 | ⚠️ Impacted | ⚠️ Impacted |
| 0.5.11 | ⚠️ Impacted | ⚠️ Impacted |
Revision History
No revisions available.