Which versions of OpenClaw are affected by EUVD-2026-27277?

OpenClaw QQBot extension versions before 2026.4.10 contain an arbitrary file read vulnerability that allows unauthenticated remote attackers to disclose sensitive local files through malicious media…. A patch is available.

How to fix or mitigate EUVD-2026-27277?

Within 24 hours: inventory all deployments of OpenClaw npm package and confirm QQBot extension status across development, staging, and production environments. Within 7 days: upgrade all instances to OpenClaw version 2026.4.10 or later (patch commit 604777e4414cc3b2ff8861f18f4fb04374c702c6), and verify patch deployment. Within 30 days: implement input validation and output encoding controls for all media tag processing, conduct file access audit logs for the past 90 days to identify unauthorized disclosures, and document remediation in change management records.

OpenClaw EUVD-2026-27277

Q: What is the CVSS score of EUVD-2026-27277?

EUVD-2026-27277 has a CVSS 4.0 base score of 8.9 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/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. EPSS exploitation probability: 0.0%.

| CVE-2026-43533 HIGH

Relative Path Traversal (CWE-23)

2026-05-05 VulnCheck

GHSA-66r7-m7xm-v49h

Information Disclosure Openclaw

8.9

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

8.9 HIGH

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/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:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/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

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Analysis Updated

May 05, 2026 - 12:48 vuln.today

v2 (cvss_changed)

Re-analysis Queued

May 05, 2026 - 12:37 vuln.today

cvss_changed

CVSS changed

May 05, 2026 - 12:37 NVD

8.6 (HIGH) 8.9 (HIGH)

Source Code Evidence Fetched

May 05, 2026 - 12:19 vuln.today

Analysis Generated

May 05, 2026 - 12:19 vuln.today

DescriptionCVE.org

OpenClaw before 2026.4.10 contains an arbitrary file read vulnerability in QQBot media tags that allows attackers to reference host-local paths outside the intended media storage boundary. Attackers can craft malicious reply text containing media tags to disclose arbitrary local files through outbound media handling.

AnalysisAI

Arbitrary file read in OpenClaw QQBot extension allows remote unauthenticated attackers to disclose sensitive local files by crafting malicious media tags in reply text. The vulnerability exists in OpenClaw npm package versions before 2026.4.10, where QQBot outbound media handling fails to enforce storage boundaries, enabling path traversal to read files outside the intended media directory. Publicly available patch confirmed (GitHub commit 604777e4414cc3b2ff8861f18f4fb04374c702c6). EPSS data unavailable; no CISA KEV listing indicates targeted disclosure rather than widespread exploitation. CVSS 8.9 with network vector and no authentication required, but exploitation requires the QQBot extension to be enabled and processing attacker-controlled reply text.

Technical ContextAI

The vulnerability stems from improper path validation (CWE-23: Relative Path Traversal) in OpenClaw's QQBot extension for npm/Node.js. OpenClaw appears to be an AI-powered chatbot framework integrating with QQ (Tencent's messaging platform). The QQBot module processes media tags in AI-generated reply text to send images, videos, voice, and files. The sendDocument function in extensions/qqbot/index.ts lacked boundary enforcement for local file paths embedded in media tags. An attacker crafting reply text with media tags pointing to arbitrary filesystem paths (e.g., ../../etc/passwd) could trigger outbound media handling to read and transmit those files through QQ's API. The fix adds an allowQQBotDataDownloads flag and enforces that all outbound local file references resolve within the designated media storage directory (getQQBotMediaDir()), preventing path traversal. The patch also introduces comprehensive security tests (outbound.security.test.ts with 401 lines) validating boundary enforcement across all media types (file, image, video, voice) and target contexts (C2C, group, channel, DM).

RemediationAI

Upgrade to OpenClaw version 2026.4.10 or newer immediately; the latest npm release 2026.4.14 includes the fix. Install via npm with 'npm install openclaw@latest' or pin to 'openclaw@2026.4.10' minimum. Vendor-released patch confirmed in GitHub commit 604777e4414cc3b2ff8861f18f4fb04374c702c6 and pull request #63271 at https://github.com/openclaw/openclaw/pull/63271. The fix enforces media storage boundary validation for all outbound QQBot local file paths by introducing an allowQQBotDataDownloads flag and path resolution checks within the designated media directory. If immediate patching is not feasible, disable the QQBot extension entirely in OpenClaw configuration to eliminate the attack surface - this prevents all QQ platform integration but removes file disclosure risk. Alternatively, implement strict input validation on AI reply text to block media tag patterns referencing filesystem paths (regex filter for '../' sequences, absolute paths, or non-media-directory references), though this workaround may be bypassed by encoding variations and is not a substitute for patching. Monitor outbound QQBot media requests for suspicious file paths outside expected media directories as a detective control. Review application logs for anomalous file access patterns to /etc/, /home/, /root/, or other sensitive directories accessed via the OpenClaw process user. Full advisory at https://github.com/openclaw/openclaw/security/advisories/GHSA-66r7-m7xm-v49h.