CVE-2026-41299 | OpenClaw up to 2026.3.27 Websocket Handshake reliance on untrusted inputs in a security decision (GHSA-6xg4-82hv-cp6f)

VDB-358410 · CVE-2026-41299 · GHSA-6XG4-82HV-CP6F OPENCLAW UP TO 2026.3.27 WEBSOCKET HANDSHAKE RELIANCE ON UNTRUSTED INPUTS IN A SECURITY DECISION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.5 $0-$5k 2.89+ Summaryinfo A vulnerability labeled as critical has been found in OpenClaw up to 2026.3.27. This affects an unknown function of the component Websocket Handshake Handler. The manipulation results in reliance on untrusted inputs in a security decision. This vulnerability is known as CVE-2026-41299. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded. Detailsinfo A vulnerability, which was classified as critical, was found in OpenClaw up to 2026.3.27. Affected is an unknown part of the component Websocket Handshake Handler. The manipulation with an unknown input leads to a reliance on untrusted inputs in a security decision vulnerability. CWE is classifying the issue as CWE-807. The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: OpenClaw before 2026.3.28 contains an authorization bypass vulnerability in the chat.send gateway method where ACP-only provenance fields are gated by self-declared client metadata from WebSocket handshake rather than verified authorization state. Authenticated operator clients can spoof ACP identity labels and inject reserved provenance fields intended only for the ACP bridge by manipulating client metadata during connection. The advisory is available at github.com. This vulnerability is traded as CVE-2026-41299 since 04/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The technical details are unknown and an exploit is not available. Upgrading to version 2026.3.28 eliminates this vulnerability. Productinfo Type Artificial Intelligence Software Name OpenClaw Version 2026.3.0 2026.3.1 2026.3.2 2026.3.3 2026.3.4 2026.3.5 2026.3.6 2026.3.7 2026.3.8 2026.3.9 2026.3.10 2026.3.11 2026.3.12 2026.3.13 2026.3.14 2026.3.15 2026.3.16 2026.3.17 2026.3.18 2026.3.19 2026.3.20 2026.3.21 2026.3.22 2026.3.23 2026.3.24 2026.3.25 2026.3.26 2026.3.27 Website Product: https://github.com/openclaw/openclaw/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 6.7 VulDB Meta Temp Score: 6.5 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.1 CNA Vector (VulnCheck): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Reliance on untrusted inputs in a security decision CWE: CWE-807 / CWE-20 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: OpenClaw 2026.3.28 Timelineinfo 04/20/2026 CVE reserved 04/21/2026 +1 days Advisory disclosed 04/21/2026 +0 days VulDB entry created 04/21/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-6xg4-82hv-cp6f Status: Confirmed CVE: CVE-2026-41299 (🔒) GCVE (CVE): GCVE-0-2026-41299 GCVE (VulDB): GCVE-100-358410 Entryinfo Created: 04/21/2026 07:21 Changes: 04/21/2026 07:21 (76) Complete: 🔍 Cache ID: 99:95C:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸