In the uncurl_ws_accept function in uncurl.c in uncurl before 0.07, as used in Parsec…
Priority MEDIUM 43CWE-352Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-352.
Summary
In the uncurl_ws_accept function in uncurl.c in uncurl before 0.07, as used in Parsec before 140-3, insufficient Origin header validation (accepting an arbitrary substring match) for WebSocket API requests allows remote attackers to bypass intended access restrictions. In Parsec, this means full control over the victim's computer.
Why it matters now
EPSS 0.02386 84th percentileScored 2026-11-07
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 · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:uncurl_project:uncurl:*:*:*:*:*:*:*:* | before 0.07 | Vulnerable | Uncurl Project |
| cpe:2.3:a:parsecgaming:parsec:*:*:*:*:*:*:*:* | before 140-3 | Vulnerable | Parsecgaming |
- cpe:2.3:a:uncurl_project:uncurl:*:*:*:*:*:*:*:* Versions before 0.07 Vulnerable ·Uncurl Project
- cpe:2.3:a:parsecgaming:parsec:*:*:*:*:*:*:*:* Versions before 140-3 Vulnerable ·Parsecgaming
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-6651
- 2026-10-03 Alias added: GHSA-g952-h9rv-wc2r
References
Sources
- CVE-2018-6651 · CVE Program
- CVE-2018-6651 · NVD
- FIRST EPSS
- GHSA-g952-h9rv-wc2r · GitHub Advisory Database · CC BY 4.0
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