CVE-2026-47091: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in jarrodwatts claude-hud
Claude HUD through 0.0.12, patched in commit 234d9aa, contains a path traversal vulnerability that allows attackers to read arbitrary files by supplying an unvalidated transcript_path value via stdin JSON. Attackers can access any file readable by the process and the file metadata is written to a persistent cache file with insufficient permissions, creating a forensic record of accessed paths that survives process exit.
AI Analysis
Technical Summary
CVE-2026-47091 is a path traversal vulnerability in the jarrodwatts project Claude HUD affecting versions prior to 0.0.13. An attacker with low privileges can supply an unvalidated transcript_path parameter through stdin JSON input to read arbitrary files accessible by the process. Additionally, metadata about these accessed files is recorded in a persistent cache file with inadequate permissions, which may leak forensic data. The vulnerability was fixed in commit 234d9aa and version 0.0.13 addresses the issue.
Potential Impact
An attacker with limited privileges can exploit this vulnerability to read any file readable by the Claude HUD process, potentially exposing sensitive information. The creation of a persistent cache file with insufficient permissions may also reveal forensic evidence of accessed files to unauthorized users. The CVSS score of 4.8 reflects a medium severity with local attack vector and low complexity.
Mitigation Recommendations
Upgrade Claude HUD to version 0.0.13 or later, which includes the fix for this path traversal vulnerability. No other mitigations are indicated by the vendor advisory.
CVE-2026-47091: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in jarrodwatts claude-hud
Description
Claude HUD through 0.0.12, patched in commit 234d9aa, contains a path traversal vulnerability that allows attackers to read arbitrary files by supplying an unvalidated transcript_path value via stdin JSON. Attackers can access any file readable by the process and the file metadata is written to a persistent cache file with insufficient permissions, creating a forensic record of accessed paths that survives process exit.
CVSS v4.0
Score 4.8medium
Affected software
pkg:github/jarrodwatts/claude-hudRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-47091 is a path traversal vulnerability in the jarrodwatts project Claude HUD affecting versions prior to 0.0.13. An attacker with low privileges can supply an unvalidated transcript_path parameter through stdin JSON input to read arbitrary files accessible by the process. Additionally, metadata about these accessed files is recorded in a persistent cache file with inadequate permissions, which may leak forensic data. The vulnerability was fixed in commit 234d9aa and version 0.0.13 addresses the issue.
Potential Impact
An attacker with limited privileges can exploit this vulnerability to read any file readable by the Claude HUD process, potentially exposing sensitive information. The creation of a persistent cache file with insufficient permissions may also reveal forensic evidence of accessed files to unauthorized users. The CVSS score of 4.8 reflects a medium severity with local attack vector and low complexity.
Mitigation Recommendations
Upgrade Claude HUD to version 0.0.13 or later, which includes the fix for this path traversal vulnerability. No other mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-05-18T19:22:26.747Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0c25c6ec166c07b08770ef
Added to database: 05/19/2026, 08:56:38 UTC
Last enriched: 07/15/2026, 10:03:08 UTC
Last updated: 08/21/2026, 10:52:10 UTC
Views: 106
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