CVE-2026-71209Network attack vectorHinoki check available

Unauthenticated file read via encoded path traversal

Published Aug 5, 2026 · Updated Aug 5, 2026

Path traversal in Audiobookshelf 2.19.1 through 2.35.1 allows remote attackers to read service-accessible files via crafted cover requests. Auth.js tests encoded req.path against cover and image exemption regexes, but Express decodes the route ID before CacheManager joins it into a filesystem path. Unauthenticated access is sufficient, and disclosure is limited to readable files whose names match the cache image naming pattern.

CVSS severity7.5
High
EPSS probability2.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in Audiobookshelf 2.19.1 through 2.35.1 allows remote attackers to read service-accessible files via crafted cover requests. Auth.js tests encoded req.path against cover and image exemption regexes, but Express decodes the route ID before CacheManager joins it into a filesystem path. Unauthenticated access is sufficient, and disclosure is limited to readable files whose names match the cache image naming pattern.

The record

CVE
CVE-2026-71209
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
advplyr
Product
Audiobookshelf
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=2.19.1 <=2.35.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

advplyr · Audiobookshelfversion=2.19.1 <=2.35.1

Published CVSS scores

7.5TuranSecCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

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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