CVE-2026-41343
OpenClaw: LINE webhook handler lacks shared pre-auth concurrency budget before signature verification
Description
## 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.
How to fix CVE-2026-41343
To remediate CVE-2026-41343, upgrade the affected package to a fixed version below.
- —upgrade to 2026.3.31 or later
Is CVE-2026-41343 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2026.3.31
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |