OpenClaw < 2026.3.31 - Matrix Thread Context Allowlist Bypass via Sender Validation
Published Apr 28, 2026
2.3
LOWCVSS 4.0
EPSS 0.26%
Description
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.
Affected products
-
- Version 0StatusaffectedConstraints<2026.3.31
- Version 2026.3.31StatusunaffectedConstraints-
- Version
No data.
No Red Hat product state for this CVE.
openclaw
npm
Introduced 0 Fixed 2026.3.31
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | openclaw | 0 | 2026.3.31 |
Remediation
No remediation recorded yet.
Metrics
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
1 other source (NVD) ▾
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/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Apr 29, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Apr–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.26% (0.00258) | 15.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.16% (0.00157) | 5.17th | v5 (v2026.06.15) |
| Apr 29, 2026 | 0.01% (0.00014) | 2.55th | v4 (v2025.03.14) |
References (6)
- https://github.com/advisories/GHSA-rg8m-3943-vm6q Advisory
- https://github.com/openclaw/openclaw/commit/8a563d603b70ef6338915f0527bee87282c3bad5 patch
- https://github.com/openclaw/openclaw/releases/tag/v2026.3.31
- https://github.com/openclaw/openclaw/security/advisories/GHSA-rg8m-3943-vm6q vendor-advisoryVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-41376
- https://www.vulncheck.com/advisories/openclaw-matrix-thread-context-allowlist-bypass-via-sender-validation third-party-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-rg8m-3943-vm6q | Advisory | |
| https://github.com/openclaw/openclaw/commit/8a563d603b70ef6338915f0527bee87282c3bad5 | patch | |
| https://github.com/openclaw/openclaw/releases/tag/v2026.3.31 | ||
| https://github.com/openclaw/openclaw/security/advisories/GHSA-rg8m-3943-vm6q | vendor-advisoryVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-41376 | ||
| https://www.vulncheck.com/advisories/openclaw-matrix-thread-context-allowlist-bypass-via-sender-validation | third-party-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.