CVE-2026-75099: Apache Allura: Unauthenticated REST disclosure

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-24 · updated 2026-10-12
Weakness: CWE-200

Description

Unauthenticated REST disclosure of certain content items in Apache Allura. This issue affects Apache Allura: through 1.19.1. Users are recommended to upgrade to version 1.20.0, which fixes the issue.

Affected products

Apache Software Foundation Apache Allura: before 1.20.0 — fixed in 1.20.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Allura 1.20.0. Check the vendor advisory for mitigations.

References

https://lists.apache.org/thread/lnsfx58o6mx6m44qk4vzqrq8ccmrywcy
http://www.openwall.com/lists/oss-security/2026/08/24/6

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