Auth bypass in Sheepfish Webp Conversion

CVE-2026-24530

Missing Authorization vulnerability in sheepfish WebP Conversion webp-conversion allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WebP Conversion: from n/a through <= 2.2.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.004 (33.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-24530: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-24530?
CVE-2026-24530 is a medium-severity vulnerability in Sheepfish Webp Conversion, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-01-23.
How severe is CVE-2026-24530?
Medium severity. CVSS v3 base score is 5.3 out of 10.