Is CVE-2026-35633 in the CISA KEV catalog?

No. CVE-2026-35633 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-35633?

CVE-2026-35633 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2026-35633?

CVE-2026-35633 has an EPSS score of 0.36% (28th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-35633?

Upgrade openclaw to 2026.3.22 or later.

CVE & CISA-KEV Catalog

CVE-2026-35633

MEDIUM

5.3

CVSS v3

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.

CWE-789 CWE-770Allocation of Resources Without Limits or Throttling

How to fix

Remediation Available

openclawNVD

Affected:< 2026.3.22Fixed in:2026.3.22CVE-2026-35633derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.36%probability of exploitation in 30 days

28thpercentile

Low risk: more likely to be exploited than 28% of all known CVEs.

References

Patch2

Vendor Advisory1

github.com

Third-Party Advisory1

vulncheck.com

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Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-15.