Unbounded Memory Allocation Vulnerability in OpenClaw by OpenClaw
CVE-2026-35633

6.9MEDIUM

Key Information:

Vendor

Openclaw

Status
Openclaw
Vendor
CVE Published:
9 April 2026

What is CVE-2026-35633?

OpenClaw prior to version 2026.3.22 has a vulnerability that allows attackers to exploit unbounded memory allocation through malformed HTTP error responses directed at remote media endpoints. This can lead to significant memory consumption as the application attempts to process these errors without appropriate limitations, potentially resulting in service disruption and application failures.

Affected Version(s)

OpenClaw 0 < 2026.3.22

OpenClaw 2026.3.22

References

https://github.com/openclaw/openclaw/security/advisories/...
third-party-advisory
https://github.com/openclaw/openclaw/commit/630f1479c44f7...
patch
https://github.com/openclaw/openclaw/commit/81445a901091a...
patch

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Edward-x (@YLChen-007)
.