HOMEVULNERABILITIESCVE-2026-33578
MEDIUM

CVE-2026-33578

CWE-863Published: March 31, 2026· Updated: Apr 1, 2026

4.3
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:0.9th

Official Description

OpenClaw before 2026.3.28 contains a sender policy bypass vulnerability in the Google Chat and Zalouser extensions where route-level group allowlist policies silently downgrade to open policy. Attackers can exploit this policy resolution flaw to bypass sender restrictions and interact with bots despite configured allowlist restrictions.

NVD Source

Technical Analysis

CVE-2026-33578 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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
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Official Patches & Advisories

PATCHhttps://github.com/openclaw/openclaw/commit/e64a881ae0fb8af18e451163f4c2d611d60cc8e4
ADVISORYhttps://github.com/openclaw/openclaw/security/advisories/GHSA-63mg-xp9j-jfcm
ADVISORYhttps://www.vulncheck.com/advisories/openclaw-sender-policy-allowlist-bypass-via-policy-downgrade-in-google-chat-and-zalouser-extensions

All References (3)

→
https://github.com/openclaw/openclaw/commit/e64a881ae0fb8af18e451163f4c2d611d60cc8e4Patch
→
https://github.com/openclaw/openclaw/security/advisories/GHSA-63mg-xp9j-jfcmVendor Advisory
→
https://www.vulncheck.com/advisories/openclaw-sender-policy-allowlist-bypass-via-policy-downgrade-in-google-chat-and-zalouser-extensionsThird Party Advisory

Quick Facts

CVE IDCVE-2026-33578
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-863
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedMar 31, 2026

Related CVEs (CWE-863)

CVE-2026-48286
10.0
CVE-2026-44330
10.0
CVE-2026-48303
10.0
CVE-2026-43948
9.9
CVE-2026-43999
9.9
CVE-2026-33579
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33578 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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