Resource exhaustion in Openclaw
CVE-2026-32980
OpenClaw before 2026.3.13 reads and buffers Telegram webhook request bodies before validating the x-telegram-bot-api-secret-token header, allowing unauthenticated attackers to exhaust server resources. Attackers can send POST requests to the webhook endpoint to force memory consumption, socket time, and JSON parsing work before authentication validation occurs.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (52.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.002
Affected products
- Openclaw — versions 0, 2026.3.13
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-jq3f-vjww-8rq7 (vendor-advisory, Vendor Advisory, third-party-advisory)
- github.com/openclaw/openclaw/commit/7e49e98f79073b11134beac27fdff547ba5a4a02 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-resource-exhaustion-via-unauthenticated-t… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-32980?
- CVE-2026-32980 is a high-severity vulnerability in Openclaw, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-03-29.
- How severe is CVE-2026-32980?
- High severity. CVSS v3 base score is 7.5 out of 10.