CVE-2026-47091

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.

Score

CVSS 4.0 4.8 Medium

Status

Analyzed - disclosure@vulncheck.com

Published

2026-05-18

Last modified

2026-10-26

Weaknesses

CWE-22

Affected products

• Claude-hud (Jarrodwatts)
• Claude Hud (Jarrodwatts)

References

• https://github.com/jarrodwatts/claude-hud/issues/485
• https://github.com/jarrodwatts/claude-hud/pull/487
• https://github.com/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc30
• https://www.vulncheck.com/advisories/claude-hud-path-traversal-via-transcript-path