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mediumCVSS 5.3NVD status: Analyzed

CVE-2026-35633

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.

ComponentOpenClaw
Severitymedium (CVSS 5.3)
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Published (NVD)2026-04-09
Last modified2026-06-17
Affected versions
openclaw < 2026.3.22
Fixed in2026.3.22
WeaknessCWE-789CWE-770
CISA KEVnot listed

NVD 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.

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What to do

  • Upgrade OpenClaw to 2026.3.22 or later.
  • Do not expose the component's API or UI to the internet without authentication in front of it.

Sources

Read more

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