Out-of-bounds Write 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-15208856
- published5 Feb 2026
- disclosed3 Feb 2026
- creditSy0307
Introduced: 3 Feb 2026
CVE-2026-1788 (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 Out-of-bounds Write in the xqc_process_stream_frame() function in xqc_frame.c, which accepts STREAM frames in both Initial and Handshake packets, against RFC 9000. An attacker in a MitM position can inject packets to manipulate buffer calculation.