quic-go through 0.27.0 allows remote attackers to cause a denial of service (CPU…
Priority LOW 38CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
quic-go through 0.27.0 allows remote attackers to cause a denial of service (CPU consumption) via a Slowloris variant in which incomplete QUIC or HTTP/3 requests are sent. This occurs because mtu_discoverer.go misparses the MTU Discovery service and consequently overflows the probe timer. NOTE: the vendor's position is that this behavior should not be listed as a vulnerability on the CVE List
Why it matters now
EPSS 0.02918 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:quic-go_project:quic-go:*:*:*:*:*:*:*:* | up to 0.27.0 | Vulnerable | Quic-go Project |
- cpe:2.3:a:quic-go_project:quic-go:*:*:*:*:*:*:*:* Versions up to 0.27.0 Vulnerable ·Quic-go Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-30591
- 2026-10-03 Alias added: GHSA-w2rh-hf85-pfh4
References
More Quic-go Project Quic-go vulnerabilities
- TI-2023-24866 quic-go vulnerable to pointer dereference that can lead to panic CVSS 3.1HIGH 7.5
- TI-2026-29554 quic-go: HTTP/3 QPACK Trailer Expansion Memory Exhaustion CVSS 3.1HIGH 7.5
- TI-2025-40048 quic-go HTTP/3 QPACK Header Expansion DoS CVSS 3.1MEDIUM 5.3
- TI-2023-26931 quic-go's path validation mechanism can cause denial of service CVSS 3.1MEDIUM 6.5
Sources
- CVE-2022-30591 · CVE Program
- CVE-2022-30591 · NVD
- FIRST EPSS
- GHSA-w2rh-hf85-pfh4 · GitHub Advisory Database · CC BY 4.0
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