CVE-2026-71209

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-71209
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71209.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-71209
Aliases
Published
2026-08-05T06:59:16Z
Modified
2026-08-28T11:30:59Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
audiobookshelf - %2F Encoding Discrepancy Bypasses Cover/Image Auth Exemption Regex, Enabling Unauthenticated Path Traversal
Details

audiobookshelf's authentication-exemption check (server/routers/Auth.js) matches unauthenticated-allowed GET routes against req.path via a regex requiring a literal /items/:id/cover or /authors/:id/image shape, where req.path retains %2F sequences URL-encoded. CacheManager.handleCoverCache then joins this decoded value into a cache file path and streams the result before any database-backed ownership check.

Database specific 
{
    "cna_assigner": "TuranSec",
    "cwe_ids": [
        "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71209.json"
}
References

Affected packages

Git / github.com/advplyr/audiobookshelf

Affected ranges

Type
GIT
Repo
https://github.com/advplyr/audiobookshelf
Events
Introduced
725192fbc0f5b289bc70a4eed451710359464ca6
Last Affected
aacdcc47ec0b6fa778b84627c79deb7ee0cecd70
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "2.19.1"
        },
        {
            "last_affected": "2.35.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v2.*
v2.19.1
v2.19.2
v2.19.3
v2.19.4
v2.19.5
v2.20.0
v2.21.0
v2.22.0
v2.23.0
v2.24.0
v2.25.0
v2.25.1
v2.26.0
v2.26.1
v2.26.2
v2.26.3
v2.27.0
v2.28.0
v2.29.0
v2.30.0
v2.31.0
v2.32.0
v2.32.1
v2.33.0
v2.33.1
v2.33.2
v2.34.0
v2.35.0
v2.35.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71209.json"