CVE-2026-29612

medium

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.

References

Advisories
More

https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-large-base-media-file-decoding

https://github.com/openclaw/openclaw/security/advisories/GHSA-w2cg-vxx6-5xjg

https://github.com/openclaw/openclaw/commit/31791233d60495725fa012745dde8d6ee69e9595

Details

Source: Mitre, NVD

Published: 2026-03-05

Updated: 2026-03-11

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

CVSS v4

Base Score: 6.8

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00044