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OpenClaw CVE-2026-43535

| EUVDEUVD-2026-27281 HIGH
Incorrect Privilege Assignment (CWE-266)
2026-05-05 VulnCheck
7.6
CVSS 4.0 · NVD
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Severity by source

NVD PRIMARY
7.6 HIGH
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/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
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

6
Analysis Updated
May 05, 2026 - 12:47 vuln.today
v2 (cvss_changed)
Re-analysis Queued
May 05, 2026 - 12:37 vuln.today
cvss_changed
Severity Changed
May 05, 2026 - 12:37 NVD
MEDIUM HIGH
CVSS changed
May 05, 2026 - 12:37 NVD
6.8 (MEDIUM) 7.6 (HIGH)
Source Code Evidence Fetched
May 05, 2026 - 12:21 vuln.today
Analysis Generated
May 05, 2026 - 12:21 vuln.today

DescriptionCVE.org

OpenClaw before 2026.4.14 contains an authorization context reuse vulnerability in collect-mode queue batches that allows messages from different senders to inherit the final sender's authorization context. Attackers can exploit this by sending multiple queued messages to drain batches using a more privileged sender's context, causing earlier messages to execute with elevated permissions.

AnalysisAI

Authorization context reuse in OpenClaw's collect-mode queue batching allows attackers with low-privilege accounts to execute messages with elevated permissions inherited from subsequent higher-privileged senders. The vulnerability occurs when messages from multiple senders are batched together, causing earlier queued messages to execute under the authorization context of the final sender in the batch rather than their own. Vendor-released patch (version 2026.4.14) confirmed available via GitHub advisory GHSA-jwrq-8g5x-5fhm and commit 43d4be9. No public exploit identified at time of analysis.

Technical ContextAI

OpenClaw is an npm package implementing an auto-reply and message queue system with multiple processing modes. The vulnerability affects the 'collect-mode' queue batching mechanism, which aggregates multiple queued messages for batch dispatch. The root cause (CWE-266: Incorrect Privilege Assignment) stems from the queue draining logic failing to preserve per-message authorization contexts when batching. Before the fix in PR #66024, the system would group all pending messages in a collect-mode queue into a single batch and execute them using the authorization context (sender ID, owner status, exec/bash-elevated overrides) of the last message added to the batch. The patch introduces authorization-aware batch splitting via a new resolveFollowupAuthorizationKey function that segments batches into contiguous groups by sender authorization context, ensuring each message executes with its original trust state. CPE cpe:2.3:a:openclaw:openclaw identifies the affected product as the OpenClaw npm package across all pre-patch versions.

RemediationAI

Upgrade to OpenClaw version 2026.4.14 or later, which contains the authorization context splitting fix from commit 43d4be902755c970b3d15608679761877718da69 (PR #66024). The npm package openclaw@2026.4.14 is confirmed available and includes the patch per the vendor advisory at https://github.com/openclaw/openclaw/security/advisories/GHSA-jwrq-8g5x-5fhm. For environments unable to upgrade immediately, disable collect-mode queue batching if the feature is not operationally required, which eliminates the vulnerable code path entirely but sacrifices the performance benefits of message aggregation. Alternatively, restrict OpenClaw deployments to single-privilege-level user populations (all owners or all non-owners) to prevent cross-privilege batch formation, though this significantly limits the platform's multi-user capabilities and does not address exec/bash-elevated override context reuse. Organizations using OpenClaw in security-sensitive contexts should prioritize the upgrade path as workarounds substantially reduce functionality.

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CVE-2026-43535 vulnerability details – vuln.today

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