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CVE-2026-35633: OpenClaw: Remote media error responses could trigger unbounded memory allocation before failure

March 26, 2026 (updated July 1, 2026)

Remote media HTTP error bodies were read without a hard size cap before failure handling, allowing unbounded allocation on error responses.

References

  • github.com/advisories/GHSA-4qwc-c7g9-4xcw
  • github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
  • github.com/openclaw/openclaw/commit/81445a901091a5d27ef0b56fceedbe4724566438
  • github.com/openclaw/openclaw/security/advisories/GHSA-4qwc-c7g9-4xcw
  • nvd.nist.gov/vuln/detail/CVE-2026-35633
  • www.vulncheck.com/advisories/openclaw-unbounded-memory-allocation-via-remote-media-error-responses

Code Behaviors & Features

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Affected versions

All versions before 2026.3.22

Fixed versions

  • 2026.3.22

Solution

Upgrade to version 2026.3.22 or above.

Impact 7.5 HIGH

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

Learn more about CVSS

Weakness

  • CWE-400: Uncontrolled Resource Consumption
  • CWE-770: Allocation of Resources Without Limits or Throttling

Source file

npm/openclaw/CVE-2026-35633.yml

Spotted a mistake? Edit the file on GitLab.

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