Improper Verification of Cryptographic Signature Affecting alibaba/xquic package, versions [,1.9.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-ALIBABAXQUIC-16325202
- published1 May 2026
- disclosed15 Apr 2026
- creditUnknown
Introduced: 15 Apr 2026
CVE-2026-6328 (opens in a new tab)How to fix?
Upgrade alibaba/xquic to version 1.9.2 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via improper validation in the STREAM frame handler during processing of Initial and Handshake packets. An attacker can manipulate protocol behavior by sending specially crafted packets.