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

High 7.3 Published Updated

Attackers can bypass the ReferrerFilter by providing weaker origin evidence, allowing unauthorized access to protected resources.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-94243?

CVE-2026-94243 is a high-severity vulnerability in Apache Sling Security Bundle, published on 23 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-346

Which versions are affected by CVE-2026-94243?

It affects 1 product.

Products include Apache Sling Security.

How do I fix CVE-2026-94243?

No fix has been published for CVE-2026-94243 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-94243 being exploited?

There is no known exploitation of CVE-2026-94243 in the wild and no public exploit code.

Sources

Also known as GHSA-h9q6-hwx8-gw7h.

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