CVE-2025-64702 (GCVE-0-2025-64702)

Vulnerability from cvelistv5 – Published: 2025-12-11 20:58 – Updated: 2025-12-12 20:45
VLAI?
Title
quic-go HTTP/3 QPACK Header Expansion DoS
Summary
quic-go is an implementation of the QUIC protocol in Go. Versions 0.56.0 and below are vulnerable to excessive memory allocation through quic-go's HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large header field section (many unique header names and/or large values). The implementation builds an http.Header (used on the http.Request and http.Response, respectively), while only enforcing limits on the size of the (QPACK-compressed) HEADERS frame, but not on the decoded header, leading to memory exhaustion. This issue is fixed in version 0.57.0.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
quic-go quic-go Affected: < 0.57.0
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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