CVE-2026-41376
OpenClaw < 2026.3.31 - Matrix Thread Context Allowlist Bypass via Sender Validation
OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
OpenClaw < 2026.3.31 - Matrix Thread Context Allowlist Bypass via Sender Validation
OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.
- Record
CVE-2026-41376- CVSS 4.0
- 2.3 Low
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
EUVDEUVD-2026-26085
OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.
- Record
EUVD-2026-26085- CVSS 4.0
- 2.3 Low
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-rg8m-3943-vm6q
OpenClaw: Matrix thread root and reply context bypass sender allowlist
Summary
Matrix thread root and reply context bypass sender allowlist
Current Maintainer Triage
- Status: open
- Normalized severity: medium
- Assessment: Real in shipped v2026.3.28 Matrix because fetched thread-root/reply context bypasses sender allowlists, with unreleased mainline filtering fix.
Affected Packages / Versions
- Package:
openclaw(npm) - Latest published npm version:
2026.3.31 - Vulnerable version range:
<=2026.3.28 - Patched versions:
>= 2026.3.31 - First stable tag containing the fix:
v2026.3.31
Fix Commit(s)
8a563d603b70ef6338915f0527bee87282c3bad5— 2026-03-31T17:09:03+01:00
OpenClaw thanks @AntAISecurityLab for reporting.
- Record
GHSA-rg8m-3943-vm6q- CVSS 4.0
- 2.3 Low
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-346, CWE-863
- Updated
- 2026-11-02
NVD
OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.
- Record
CVE-2026-41376- CVSS 4.0
- 2.3 Low
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
OSV
OpenClaw < 2026.3.31 - Matrix Thread Context Allowlist Bypass via Sender Validation
OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.
- Record
CVE-2026-41376- CVSS 4.0
- 2.3 Low
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-346
- Updated
- 2026-11-02
OSVGHSA-rg8m-3943-vm6q
OpenClaw: Matrix thread root and reply context bypass sender allowlist
Summary
Matrix thread root and reply context bypass sender allowlist
Current Maintainer Triage
- Status: open
- Normalized severity: medium
- Assessment: Real in shipped v2026.3.28 Matrix because fetched thread-root/reply context bypasses sender allowlists, with unreleased mainline filtering fix.
Affected Packages / Versions
- Package:
openclaw(npm) - Latest published npm version:
2026.3.31 - Vulnerable version range:
<=2026.3.28 - Patched versions:
>= 2026.3.31 - First stable tag containing the fix:
v2026.3.31
Fix Commit(s)
8a563d603b70ef6338915f0527bee87282c3bad5— 2026-03-31T17:09:03+01:00
OpenClaw thanks @AntAISecurityLab for reporting.
- Record
GHSA-rg8m-3943-vm6q- CVSS 4.0
- 2.3 Low
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-346, CWE-863
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-41376 is a low vulnerability (CVSS 2.3) in Openclaw, published April 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 4th percentile. Fixed in openclaw 2026.3.31.
References
github.com/openclaw/openclaw/security/advisories/GHSA-rg8m-3943-vm6q
vulncheck.com/advisories/openclaw-matrix-thread-context-allowlist-bypass-via-sender-validation
nvd.nist.gov/vuln/detail/CVE-2026-41376