CVE-2026-47091

Local file disclosure via unvalidated transcript path

Published May 18, 2026 · Updated May 18, 2026

Path traversal in Claude HUD 0.0.12 and earlier allows local users to read any process-readable file through stdin JSON transcript_path. parseTranscript uses the supplied path for filesystem stat and stream operations without a directory-boundary check, then persists file metadata in a cache. Exploitation requires control of JSON delivered to the local statusline process; ordinary Claude Code transcript paths remain in transcript storage.

CVSS severity4.8
Medium
EPSS probability0.13%
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 Claude HUD 0.0.12 and earlier allows local users to read any process-readable file through stdin JSON transcript_path. parseTranscript uses the supplied path for filesystem stat and stream operations without a directory-boundary check, then persists file metadata in a cache. Exploitation requires control of JSON delivered to the local statusline process; ordinary Claude Code transcript paths remain in transcript storage.

The record

CVE
CVE-2026-47091
Published
May 18, 2026
Updated
May 18, 2026
Vendor
Jarrod Watts
Product
Claude HUD
Classifications
CWE-22, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 18, 2026CVE publishedPublication date reported by the CVE source.
  2. May 18, 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 <=0.0.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Jarrod Watts · Claude HUDversion=0 <=0.0.12

Published CVSS scores

3.3VulnCheckCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.8VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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