https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-03T18:23:05.194019+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-35640 CVE-2026-35640 — OpenClaw < 2026.3.25 - Denial of Service via Unauthenticated Webhook Request Parsing 2026-10-03T18:23:05.239485+00:00

Affected: OpenClaw

OpenClaw before 2026.3.25 parses JSON request bodies before validating webhook signatures, allowing unauthenticated attackers to force resource-intensive parsing operations. Remote attackers can send malicious webhook requests to trigger denial of service by exhausting server resources through forced JSON parsing before signature rejection.

 https://cve.radiocsirt.org/vuln/ghsa-3h52-cx59-c456 GHSA-3h52-cx59-c456 — OpenClaw: Feishu webhook reads and parses unauthenticated request bodies before signature validation 2026-10-03T18:23:05.239532+00:00

Affected: npm: openclaw

## Summary

Feishu webhook reads and parses unauthenticated request bodies before signature validation

## Affected Packages / Versions

- Package: `openclaw` - Affected versions: `<= 2026.3.24` - First patched version: `2026.3.25` - Latest published npm version at verification time: `2026.3.24`

## Details

Feishu webhook handling previously parsed JSON before signature validation, which let unauthenticated callers force full JSON parsing work before rejection. Commit `5e8cb22176e9235e224be0bc530699261eb60e53` reads the raw request body, validates the signature first, and only then parses JSON.

Verified vulnerable on tag `v2026.3.24` and fixed on `main` by commit `5e8cb22176e9235e224be0bc530699261eb60e53`.

## Fix Commit(s)

- `5e8cb22176e9235e224be0bc530699261eb60e53`