quinn-proto Denial of Service vulnerability
Priority MEDIUM 41CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
quinn-proto is a state machine for the QUIC transport protocol. Prior to versions 0.9.5 and 0.10.5, receiving unknown QUIC frames in a QUIC packet could result in a panic. The problem has been fixed in 0.9.5 and 0.10.5 maintenance releases.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00937 61st percentileScored 2026-11-07
Fix Fixed quinn (quinn-rs): 0.9.5, 0.10.5quinn-proto (crates.io): 0.9.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| quinn-rs | quinn | before 0.9.5; 0.10.0 to before 0.10.5 | 0.9.5, 0.10.5 | Patch available | CNA |
| — | quinn-proto (crates.io) | before 0.9.5 | 0.9.5 | Patch available | GHSA-q8wc-j5m9-27w3 |
- quinn Vendorquinn-rs Affected before 0.9.5; 0.10.0 to before 0.10.5 Fixed in 0.9.5, 0.10.5 Patch available CNA
- quinn-proto (crates.io) Vendor— Affected before 0.9.5 Fixed in 0.9.5 Patch available GHSA-q8wc-j5m9-27w3
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:quinn_project:quinn:*:*:*:*:*:rust:*:* | before 0.9.5; 0.10.0 to before 0.10.5 | Vulnerable | Quinn Project |
- cpe:2.3:a:quinn_project:quinn:*:*:*:*:*:rust:*:* Versions before 0.9.5; 0.10.0 to before 0.10.5 Vulnerable ·Quinn Project
Remediation
- Fix · CNA quinn (quinn-rs) Fixed in 0.9.5, 0.10.5
- Fix · GHSA-q8wc-j5m9-27w3 quinn-proto (crates.io) Fixed in 0.9.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-42805
- 2026-10-03 Alias added: GHSA-q8wc-j5m9-27w3
References
Advisory 2
More quinn-rs vulnerabilities
- TI-2026-24365 Quinn affected by unauthenticated remote DoS via panic in QUIC transport parameter parsing CVSS 4.0HIGH 8.7
- TI-2026-20864 quinn-proto has remote memory exhaustion from unbounded out-of-order stream reassembly CVSS 3.1HIGH 7.5
Sources
- CVE-2023-42805 · CVE Program
- CVE-2023-42805 · NVD
- FIRST EPSS
- GHSA-q8wc-j5m9-27w3 · GitHub Advisory Database · CC BY 4.0
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