| Component | OpenClaw |
| Severity | medium (CVSS 5.5) |
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Published (NVD) | 2026-03-05 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.2.14 |
| Fixed in | 2026.2.14 |
| Weakness | CWE-770 |
| CISA KEV | not listed |
NVD description
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.
What to do
- Upgrade OpenClaw to
2026.2.14or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-29612
- https://github.com/openclaw/openclaw/commit/31791233d60495725fa012745dde8d6ee69e9595
- https://github.com/openclaw/openclaw/security/advisories/GHSA-w2cg-vxx6-5xjg
- https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-large-base-media-file-decoding
Read more
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