CVE-2026-35570Public exploit

Sandbox escape via skipped path constraint validation

Published Apr 20, 2026 · Updated Apr 20, 2026

Path traversal in Gitlawb OpenClaude before 0.5.1 allows local users to read or write files outside the sandbox boundary. bashToolHasPermission returns allow from its sandbox auto-allow branch before checkPathConstraints validates traversal sequences. Exploitation requires a sandboxed session with Bash auto-allow enabled and no explicit deny rule; filesystem access remains limited by OS permissions.

CVSS severity8.4
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Gitlawb OpenClaude before 0.5.1 allows local users to read or write files outside the sandbox boundary. bashToolHasPermission returns allow from its sandbox auto-allow branch before checkPathConstraints validates traversal sequences. Exploitation requires a sandboxed session with Bash auto-allow enabled and no explicit deny rule; filesystem access remains limited by OS permissions.

The record

CVE
CVE-2026-35570
Published
Apr 20, 2026
Updated
Apr 20, 2026
Vendor
Gitlawb
Product
OpenClaude
Classifications
CWE-284, CWE-22, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.5.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Gitlawb · OpenClaudeversion=< 0.5.1

Published CVSS scores

8.4GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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