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CVE-2025-25205: Audiobookshelf is a self-hosted audiobook and podcast server

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HIGH 8.2REMOTEUPGRADE

CVE-2025-25205 is a high-severity flaw (CVSS 8.2) affecting audiobookshelf. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Audiobookshelf is a self-hosted audiobook and podcast server. Starting in version 2.17.0 and prior to version 2.19.1, a flaw in the authentication bypass logic allows unauthenticated requests to match certain unanchored regex patterns in the URL. Attackers can craft URLs containing substrings like "/api/items/1/cover" in a query parameter (?r=/api/items/1/cover) to partially bypass authentication or trigger server crashes under certain routes. Th

Why this priority

  • High severity
  • EPSS top 8%: very likely to be exploited
  • Public exploit reference
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score8.2 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance4.8% (top 8%)
CISA exploited listNo
WeaknessCWE-202, CWE-287, CWE-400
Published2025-02-12
Last modified2026-06-17
Publisher (CNA): GitHub, Inc. · Vendor: audiobookshelf

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

audiobookshelf audiobookshelf UPGRADE
Affected: >= 2.17.0 and < 2.19.1
Fixed in: 2.19.1
Safe to downgrade to: a release before 2.17.0
1. Check installed version
apt-cache policy audiobookshelf || rpm -q audiobookshelf || audiobookshelf --version
2. UPGRADE to 2.19.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade audiobookshelf
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade audiobookshelf
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 2.17.0 (Debian / Ubuntu)
apt-cache madison audiobookshelf sudo apt install audiobookshelf=<VERSION_BEFORE_2.17.0> sudo apt-mark hold audiobookshelf
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list audiobookshelf sudo dnf downgrade audiobookshelf-<VERSION_BEFORE_2.17.0> sudo dnf versionlock add audiobookshelf
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-25205?

audiobookshelf: upgrade to 2.19.1. Exact commands for each OS are on this page.

Is CVE-2025-25205 being exploited?

CVE-2025-25205 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-25205 affect?

CVE-2025-25205 affects audiobookshelf. Severity is high (CVSS 8.2). Audiobookshelf is a self-hosted audiobook and podcast server. Starting in version 2.17.0 and prior to version 2.19.1, a flaw in the authentication bypass logic allows unauthenticated requests to match certain unanchored regex patterns in th

How urgent is CVE-2025-25205?

Priority 62/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

References

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