How severe is CVE-2026-42074?

CVE-2026-42074 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-42074 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42074?

CVE-2026-42074 affects Gitlawb Openclaude. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42074?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-42074 have an EU (EUVD) identifier?

Yes. CVE-2026-42074 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33972.

When was CVE-2026-42074 published?

CVE-2026-42074 was published on 2026-06-02 and last updated on 2026-06-17.

CVE-2026-42074

CVE-2026-42074 is a critical-severity vulnerability in Gitlawb Openclaude with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33972
Weakness: CWE-284
Affected product: Gitlawb Openclaude
Published: 2026-06-02
Last modified: 2026-06-17

Description

OpenClaude is an open-source coding-agent command line interface for cloud and local model providers. Prior to version 0.5.1, the dangerouslyDisableSandbox parameter is exposed as part of the BashTool input schema, meaning the LLM (an untrusted principal per the project's own threat model) can set it to true in any tool_use response. Combined with the default allowUnsandboxedCommands: true setting, a prompt-injected model can escape the sandbox for any arbitrary command, achieving full host-level code execution. This issue has been patched in version 0.5.1.

Frequently asked questions

What is CVE-2026-42074?: OpenClaude is an open-source coding-agent command line interface for cloud and local model providers. Prior to version 0.5.1, the dangerouslyDisableSandbox parameter is exposed as part of the BashTool input schema, meaning the LLM (an untrusted principal per the project's own threat model) can set it to true in any tool_use response. Combined with the default allowUnsandboxedCommands: true setting, a prompt-injected model can escape the sandbox for any arbitrary command, achieving full host-level code execution. This issue has been patched in version 0.5.1.
How severe is CVE-2026-42074?: CVE-2026-42074 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-42074 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42074?: CVE-2026-42074 affects Gitlawb Openclaude. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42074?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-42074 have an EU (EUVD) identifier?: Yes. CVE-2026-42074 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33972.
When was CVE-2026-42074 published?: CVE-2026-42074 was published on 2026-06-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gitlawb:openclaude:*:*:*:*:*:*:*:*

More vulnerabilities in Gitlawb Openclaude

CVE-2026-35570 — High (CVSS 8.4): OpenClaude is an open-source coding-agent command line interface for cloud and local model providers. Versions prior to…
CVE-2026-42073 — Medium (CVSS 6.5): OpenClaude is an open-source coding-agent command line interface for cloud and local model providers. Prior to version…

All CVEs affecting Gitlawb Openclaude →

Other CWE-284 (Improper Access Control) vulnerabilities

CVE-2026-50746 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi…
CVE-2026-46978 — Critical (CVSS 10.0): Vulnerability in the Oracle Solaris product of Oracle Systems (component: Remote Administration Daemon). The…
CVE-2026-35308 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third Party Jars).…
CVE-2026-35307 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that…
CVE-2026-46695 — Critical (CVSS 10.0): Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers…
CVE-2026-46840 — Critical (CVSS 10.0): Vulnerability in Oracle REST Data Services (component: Backend-as-a-Service). Supported versions that are affected are…

Browse all CWE-284 (Improper Access Control) vulnerabilities →