CVE-2025-64702
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
11/12/2025
Last modified:
11/12/2025
Description
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.
Impact
Base Score 3.x
5.30
Severity 3.x
MEDIUM