OpenClaw up to 2026.5.11 Allowlist Parser incomplete blacklist

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in OpenClaw up to 2026.5.11. Affected is an unknown function of the component Allowlist Parser. Performing a manipulation results in incomplete blacklist. This vulnerability was named CVE-2026-53836. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenClaw up to 2026.5.11. It has been classified as critical. This affects some unknown functionality of the component Allowlist Parser. The manipulation with an unknown input leads to a incomplete blacklist vulnerability. CWE is classifying the issue as CWE-184. The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

OpenClaw before 2026.5.12 contains an allowlist bypass vulnerability in PowerShell encoded-command handling that allows attackers to execute encoded commands using abbreviated flag aliases not recognized by the allowlist parser. Remote authenticated operators can bypass execution allowlist checks by using unrecognized encoded-command alias forms to execute arbitrary PowerShell content.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-53836 since 06/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1562.006 according to MITRE ATT&CK.

Upgrading to version 2026.5.12 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-36624) and CERT Bund (WID-SEC-2026-1913). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Open Source OpenClaw

Productinfo

Type

Name

Version

Website

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: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Incomplete blacklist
CWE: CWE-184 / CWE-183 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: OpenClaw 2026.5.12

Timelineinfo

06/10/2026 CVE reserved
06/13/2026 +3 days Advisory disclosed
06/13/2026 +0 days VulDB entry created
06/15/2026 +2 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-j472-gf56-x589
Status: Confirmed

CVE: CVE-2026-53836 (🔒)
GCVE (CVE): GCVE-0-2026-53836
GCVE (VulDB): GCVE-100-370743
EUVD: 🔒
CERT Bund: WID-SEC-2026-1913 - OpenClaw: Mehrere Schwachstellen ermöglichen die Umgehung von Sicherheitsmaßnahmen

Entryinfo

Created: 06/13/2026 06:43
Updated: 06/15/2026 11:25
Changes: 06/13/2026 06:43 (77), 06/13/2026 21:44 (1), 06/15/2026 11:25 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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