PT-2025-50733 · Quic-Go+1 · Quic-Go+1

Published 2025-12-11 · Updated 2026-05-21 · CVE-2025-64702

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions quic-go versions 0.56.0 and below

Description quic-go, an implementation of the QUIC protocol in Go, is susceptible to excessive memory allocation. This occurs through the HTTP/3 client and server implementations when processing a QPACK-encoded HEADERS frame that expands into a large header field section, containing numerous unique header names and/or large values. The implementation constructs an http.Header without adequately limiting the size of the decoded header, leading to potential memory exhaustion.

Recommendations Update to version 0.57.0 or later.

Exploit

Fix

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CLEANSTART-2026-VJ54611

CVE-2025-64702

GHSA-G754-HX8W-X2G6

GO-2025-4233

OPENSUSE-SU-2026:10035-1

OPENSUSE-SU-2026:10131-1

OPENSUSE-SU-2026:20191-1

OPENSUSE-SU-2026:20809-1

SUSE-SU-2026:0037-1

Affected Products

Debian

Quic-Go

References · 160

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64702.json · Exploit
• https://github.com/quic-go/quic-go/security/advisories/GHSA-g754-hx8w-x2g6 · Vendor Advisory
• https://github.com/quic-go/quic-go/commit/5b2d2129f8315da41e01eff0a847ab38a34e83a8 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:0037-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33811 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:20191-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-39819 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42501 · Security Note
• https://osv.dev/vulnerability/GO-2025-4233 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-64702 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-39836 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-39826 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10035-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-5187 · Security Note
• https://osv.dev/vulnerability/CVE-2025-64702 · Vendor Advisory