What’s Vulnerable › Vulnerabilities

CVE-2026-94243: Apache Sling Security Bundle: RefererFilter accepts weaker-than-origin evidence

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-23 · updated 2026-10-06
• Weakness: CWE-346

Description

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.

Affected products

• Apache Software Foundation Apache Sling Security Bundle: before 1.3.2 — fixed in 1.3.2

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Sling Security Bundle 1.3.2. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/ohz47f6hrflsjvt9m24qz69qm5w4bwyr
• http://www.openwall.com/lists/oss-security/2026/09/23/16

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