OpenClaw up to 2026.4.9 Environment Variable VIMINIT/EXINIT/LUA_INIT/HOSTALIASES 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 labeled as critical has been found in OpenClaw up to 2026.4.9. The impacted element is an unknown function of the component Environment Variable Handler. Such manipulation of the argument VIMINIT/EXINIT/LUA_INIT/HOSTALIASES leads to incomplete blacklist. This vulnerability is uniquely identified as CVE-2026-43584. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in OpenClaw up to 2026.4.9 and classified as critical. Affected by this issue is an unknown part of the component Environment Variable Handler. The manipulation of the argument VIMINIT/EXINIT/LUA_INIT/HOSTALIASES with an unknown input leads to a incomplete blacklist vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

OpenClaw before 2026.4.10 contains an insufficient environment variable denylist vulnerability in its exec environment policy that allows operator-supplied overrides of high-risk interpreter startup variables including VIMINIT, EXINIT, LUA_INIT, and HOSTALIASES. Attackers can exploit this by manipulating these environment variables to influence downstream execution behavior or network connectivity.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-43584 since 05/01/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1562.006 by the MITRE ATT&CK project.

Upgrading to version 2026.4.10 eliminates this vulnerability. Applying the patch 2d126fc62343a7b6895351f96e4e1474bc358140 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Name

Version

License

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 2026.4.10
Patch: 2d126fc62343a7b6895351f96e4e1474bc358140

Timelineinfo

05/01/2026 CVE reserved
05/07/2026 +6 days Advisory disclosed
05/07/2026 +0 days VulDB entry created
05/07/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-vfp4-8x56-j7c5
Status: Confirmed

CVE: CVE-2026-43584 (🔒)
GCVE (CVE): GCVE-0-2026-43584
GCVE (VulDB): GCVE-100-361742

Entryinfo

Created: 05/07/2026 07:17
Changes: 05/07/2026 07:17 (80)
Complete: 🔍
Cache ID: 216::103

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