How severe is CVE-2026-42888?

CVE-2026-42888 has a CVSS 4.0 base score of 6.9, rated medium severity.

Is CVE-2026-42888 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-42888?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-42888 have an EU (EUVD) identifier?

Yes. CVE-2026-42888 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29297.

When was CVE-2026-42888 published?

CVE-2026-42888 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-42888

CVE-2026-42888 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 4.0 base score 6.9)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29297
Weakness: CWE-22
Published: 2026-05-11
Last modified: 2026-06-17

Description

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the podcast creation endpoint at server/controllers/PodcastController.js accepts a user-controlled file path without sufficient boundary validation to ensure it remains within the intended library directory. This vulnerability is fixed in 2.32.2.

Frequently asked questions

What is CVE-2026-42888?: Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the podcast creation endpoint at server/controllers/PodcastController.js accepts a user-controlled file path without sufficient boundary validation to ensure it remains within the intended library directory. This vulnerability is fixed in 2.32.2.
How severe is CVE-2026-42888?: CVE-2026-42888 has a CVSS 4.0 base score of 6.9, rated medium severity.
Is CVE-2026-42888 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-42888?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-42888 have an EU (EUVD) identifier?: Yes. CVE-2026-42888 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29297.
When was CVE-2026-42888 published?: CVE-2026-42888 was published on 2026-05-11 and last updated on 2026-06-17.

References

https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-phch-9734-wrp3

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