Missing authentication in Nexting pinclaw lets attackers inject prompts
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
The Nexting pinclaw OpenClaw channel plugin through 0.3.0 has a missing authentication flaw (CWE-306) in src/core/http-router.ts, where the authToken check is skipped on POST /pinclaw/send. An unauthenticated remote attacker who can reach port 18790, which binds all interfaces by default, can inject blind prompts into the user's main OpenClaw agent session as user instructions.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Nexting pinclaw OpenClaw channel plugin through 0.3.0 contains a missing authentication vulnerability in src/core/http-router.ts that skips the authToken check on POST /pinclaw/send. Unauthenticated attackers reaching port 18790, which binds all interfaces by default, can inject blind prompts into the user's main OpenClaw agent session as user instructions.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for pinclaw.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-11 Threatist record created from CVE-2026-108757
- 2026-10-11 Alias added: GHSA-w679-vj8x-2q83
- 2026-10-12 Priority changed: MEDIUM → LOW
- 2026-10-13 CISA SSVC decision points changed
References
Sources
- CVE-2026-108757 · CVE Program
- CVE-2026-108757 · NVD
- FIRST EPSS
- GHSA-w679-vj8x-2q83 · GitHub Advisory Database · CC BY 4.0
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