CVE-2026-27974: Audiobookshelf is a self-hosted audiobook and podcast server

Q: How do I fix CVE-2026-27974?

audiobookshelf mobile app: upgrade to 0.12.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-27974 being exploited?

CVE-2026-27974 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-27974 affect?

CVE-2026-27974 affects audiobookshelf mobile app. Severity is medium (CVSS 4.8). Audiobookshelf is a self-hosted audiobook and podcast server. A cross-site scripting (XSS) vulnerability exists in versions prior to 0.12.0-beta of the Audiobookshelf mobile application that allows arbitrary JavaScript execution through mal

Q: How urgent is CVE-2026-27974?

Priority 20/100. No elevated risk signals yet.

Routine

MEDIUM 4.8UPGRADE

CVE-2026-27974 is a medium-severity flaw (CVSS 4.8) affecting audiobookshelf mobile app. 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. A cross-site scripting (XSS) vulnerability exists in versions prior to 0.12.0-beta of the Audiobookshelf mobile application that allows arbitrary JavaScript execution through malicious library metadata. Attackers with library modification privileges (or control over a malicious podcast RSS feed) can execute code in victim users' WebViews, potentially leading to session hijacking, data

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-02-26
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: audiobookshelf

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

Am I affected?

Timeline

2026-02-26 03:16 UTCPublished CVE record published
2026-06-17 10:27 UTCUpdated Record last modified

audiobookshelf audiobookshelf mobile app UPGRADE

Affected: < 0.12.0

Fixed in: 0.12.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy audiobookshelf-mobile-app || rpm -q audiobookshelf-mobile-app || audiobookshelf-mobile-app --version

2. UPGRADE to 0.12.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade audiobookshelf-mobile-app

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade audiobookshelf-mobile-app

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-27974?

audiobookshelf mobile app: upgrade to 0.12.0. Exact commands for each OS are on this page.

Is CVE-2026-27974 being exploited?

CVE-2026-27974 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-2026-27974 affect?

CVE-2026-27974 affects audiobookshelf mobile app. Severity is medium (CVSS 4.8). Audiobookshelf is a self-hosted audiobook and podcast server. A cross-site scripting (XSS) vulnerability exists in versions prior to 0.12.0-beta of the Audiobookshelf mobile application that allows arbitrary JavaScript execution through mal

How urgent is CVE-2026-27974?

Priority 20/100. No elevated risk signals yet.

Related CVEs

CVE-2026-27973 MEDIUM 4.0 UPGRADE UPGRADE Audiobookshelf is a self-hosted audiobook and podcast server

References

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