HOMEVULNERABILITIESCVE-2026-41400
HIGH

CVE-2026-41400

CWE-770Published: April 28, 2026· Updated: Apr 30, 2026

7.5
CVSS v3.1
EPSS:0.11%probability of exploitation in 30 daysPercentile:29.7th

Official Description

OpenClaw before 2026.3.31 contains an incomplete fix for CVE-2026-32062 where the voice-call component parses large WebSocket frames before start validation. Remote attackers can send oversized pre-start WebSocket frames to cause resource consumption and denial of service.

NVD Source

Technical Analysis

CVE-2026-41400 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

openclaw1 product
openclaw
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/openclaw/openclaw/commit/9abcfdadf591bf266d85fbdfe14ae833e557a110
ADVISORYhttps://github.com/openclaw/openclaw/security/advisories/GHSA-2w79-r9g8-wmcr
ADVISORYhttps://www.vulncheck.com/advisories/openclaw-resource-consumption-via-oversized-websocket-frames-in-voice-call

All References (3)

→
https://github.com/openclaw/openclaw/commit/9abcfdadf591bf266d85fbdfe14ae833e557a110Patch
→
https://github.com/openclaw/openclaw/security/advisories/GHSA-2w79-r9g8-wmcrVendor Advisory
→
https://www.vulncheck.com/advisories/openclaw-resource-consumption-via-oversized-websocket-frames-in-voice-callThird Party Advisory

Quick Facts

CVE IDCVE-2026-41400
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-770
CISA KEVNo
EPSS (30d)0.11%
Affected1 vendor
PublishedApr 28, 2026

Related CVEs (CWE-770)

CVE-2026-12818
9.3
CVE-2026-44499
8.7
CVE-2026-48854
8.7
CVE-2026-32689
8.7
CVE-2026-39803
8.7
CVE-2026-39313
8.7

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-41400 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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