CVE-2026-35633

MEDIUM EPSS 27.9%
Published Apr 9, 20262mo ago · Modified Jun 17, 20261w ago
6.9 CVSS 4.0
Medium
Find Similar
Published Apr 9, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

OpenClaw before 2026.3.22 contains an unbounded memory allocation vulnerability in remote media HTTP error handling that allows attackers to trigger excessive memory consumption. Attackers can send crafted HTTP error responses with large bodies to remote media endpoints, causing the application to allocate unbounded memory before failure handling occurs.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
27.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-770
CWE-789

Affected Products 1

VendorProductVersionRange
openclawopenclaw* <2026.3.22

References 4

  • github.com https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/81445a901091a5d27ef0b56fceedbe4724566438
    Patch
  • github.com https://github.com/openclaw/openclaw/security/advisories/GHSA-4qwc-c7g9-4xcw
    Vendor Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/openclaw-unbounded-memory-allocation-via-remote-media-error-responses
    Third Party Advisory

Remediation

  • github.com https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/81445a901091a5d27ef0b56fceedbe4724566438
    Patch