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CVE-2025-64702

quic-go HTTP/3 QPACK Header Expansion DoS PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
quic-go / quic-goaffected < 0.57.0

CWE

CWE-770

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.