Resource exhaustion in Openclaw
CVE-2026-29612
OpenClaw versions prior to 2026.2.14 decode base64-backed media inputs into buffers before enforcing decoded-size budget limits, allowing attackers to trigger large memory allocations. Remote attackers can supply oversized base64 payloads to cause memory pressure and denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Openclaw — versions 0
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-w2cg-vxx6-5xjg (vendor-advisory, Third Party Advisory)
- github.com/openclaw/openclaw/commit/31791233d60495725fa012745dde8d6ee69e9595 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-denial-of-service-via-large-base-media-fi… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-29612?
- CVE-2026-29612 is a medium-severity vulnerability in Openclaw, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-03-05.
- How severe is CVE-2026-29612?
- Medium severity. CVSS v3 base score is 5.5 out of 10.