# CVE-2026-75099: Apache Allura unauthenticated REST disclosure of content items

Source: https://junglewise.ai/threats/cve-2026-75099-apache-allura-unauthenticated-rest-disclosure-of-content-items  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-24. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-75099 · Severity: medium · CVSS 5.3 · Published 2026-08-24

Apache Allura is an open-source project management and collaboration platform. An unauthenticated attacker can access certain sensitive content items through the REST API that should have been restricted, potentially exposing private project data, documents, or communications to unauthorized users.

Technologies: [Apache Allura](https://junglewise.ai/threats/technologies/allura). Vendors: [Apache](https://junglewise.ai/threats/vendors/apache).

## Quick answers

**Is CVE-2026-75099 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-75099 being exploited in the wild.

**How severe is CVE-2026-75099?** Medium severity, with a CVSS score of 5.3, published 24 August 2026.

**Which products and versions are affected?** Apache Allura through 1.19.1.

**Is there a fix for CVE-2026-75099?** A patch was published on 2026: Fix available in version 1.20.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-75099 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-75099?** Check whether you run Apache Allura at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an information disclosure flaw in Apache Allura's REST API that allows unauthenticated access to certain content items that should require authentication. The root cause is improper access control checks on REST API endpoints. An attacker with network access to the Allura instance can directly query the REST API without authentication to retrieve sensitive content. This impacts confidentiality of restricted project data. The issue affects versions through 1.19.1 and has been fixed in version 1.20.0.

## Affected products

- Apache Allura through 1.19.1

## Timeline

- 2026-08-24: disclosed
- 2026: patched: Fix available in version 1.20.0

## References

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

## Related threats

- [Apache Allura OAuth 1 rebinding vulnerability](https://junglewise.ai/threats/cve-2026-118196-oauth-1-rebinding-vulnerability-in-apache-allura-this-issue)
- [Apache Allura OAuth1 request replay attack](https://junglewise.ai/threats/cve-2026-92120-oauth1-request-replay-attack-vulnerability-in-apache-allura-this)
- [Apache Allura REST API mass assignment vulnerability](https://junglewise.ai/threats/cve-2026-92119-rest-api-mass-assignment-vulnerability-in-apache-allura-this)
- [Apache Allura OAuth1 callback validation vulnerability](https://junglewise.ai/threats/cve-2026-92116-oauth1-callback-validation-vulnerability-in-apache-allura-this)
- [Apache Allura stored XSS in SVN repositories](https://junglewise.ai/threats/cve-2026-80190-apache-allura-stored-xss-in-svn-repositories)