Vulnerability in Apache Sling Security

CVE-2026-94243

A vulnerability in Apache Sling Security Bundle: the ReferrerFilter accepts weaker-than-orgin evidence. This issue affects Apache Sling Security Bundle: before 1.3.2. Users are recommended to upgrade to version 1.3.2, which fixes the issue.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (24.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.2% 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-2026-94243: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-94243?
CVE-2026-94243 is a high-severity vulnerability in Apache Sling Security, classified under Origin Validation Error. CVSS score: 7.3/10. Published 2026-09-23.
How severe is CVE-2026-94243?
High severity. CVSS v3 base score is 7.3 out of 10.