An issue was discovered in Kwik before 0.10.1.
Priority LOW 31CWE-407Published · 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 · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-407.
Summary
An issue was discovered in Kwik before 0.10.1. A hash collision vulnerability (in the hash table used to manage connections) allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs).
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00579 47th percentileScored 2026-11-07
Fix Fixed Kwik (ptrd): 0.10.1tech.kwik:kwik (Maven): 0.10.1
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 |
|---|---|---|---|---|---|
| ptrd | Kwik | before 0.10.1 | 0.10.1 | Patch available | CNA |
| — | tech.kwik:kwik (Maven) | before 0.10.1 | 0.10.1 | Patch available | GHSA-9f57-9rhg-4hvm |
- Kwik Vendorptrd Affected before 0.10.1 Fixed in 0.10.1 Patch available CNA
- tech.kwik:kwik (Maven) Vendor— Affected before 0.10.1 Fixed in 0.10.1 Patch available GHSA-9f57-9rhg-4hvm
Remediation
- Fix · CNA Kwik (ptrd) Fixed in 0.10.1
- Fix · GHSA-9f57-9rhg-4hvm tech.kwik:kwik (Maven) Fixed in 0.10.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-23020
- 2026-10-03 Alias added: GHSA-9f57-9rhg-4hvm
References
Sources
- CVE-2025-23020 · CVE Program
- CVE-2025-23020 · NVD
- FIRST EPSS
- GHSA-9f57-9rhg-4hvm · GitHub Advisory Database · CC BY 4.0
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