OpenClaw: LINE webhook handler lacks shared pre-auth concurrency budget before signature verification
## Summary LINE webhook handler lacks shared pre-auth concurrency budget before signature verification ## Current Maintainer Triage - Status: open - Normalized severity: low - Assessment: Shipped v2026.3.28 lacks a shared pre-auth concurrency budget on the public LINE webhook path, but the effect is bounded transient availability loss only, so low fits. ## Affected Packages / Versions - Package: `openclaw` (npm) - Latest published npm version: `2026.3.31` - Vulnerable version range: `<=2026.3.28` - Patched versions: `>= 2026.3.31` - First stable tag containing the fix: `v2026.3.31` ## Fix Commit(s) - `57c47d8c7fbf5a2e70cc4dec2380977968903cad` — 2026-03-31T19:34:25+09:00 OpenClaw thanks @nexrin for reporting.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-41343US | — | — | ||
OpenClaw before 2026.3.31 lacks a shared pre-auth concurrency budget on the public LINE webhook path, allowing attackers to cause transient availability loss. Remote attackers can… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/openclaw/openclawPACKAGE
- https://github.com/openclaw/openclaw/commit/57c47d8c7fbf5a2e70cc4dec2380977968903cadWEB
- https://github.com/openclaw/openclaw/releases/tag/v2026.3.31WEB
- https://github.com/openclaw/openclaw/security/advisories/GHSA-qcc3-jqwp-5vh2WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-41343ADVISORY
- https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-line-webhook-handler-pre-auth-concurrencyWEB
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