Apache Allura OAuth1 Replay Attack Fixed in 1.22.0
CVE-2026-92120 Published on October 12, 2026
Apache Allura: Oauth1 Replay Attack
OAuth1 Request Replay Attack vulnerability in Apache Allura.
This issue affects Apache Allura: through 1.21.0.
Users are recommended to upgrade to version 1.22.0 which fixes the issue.
Vulnerability Analysis
CVE-2026-92120 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
Authentication Bypass by Capture-replay
A capture-replay flaw exists when the design of the software makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). Capture-replay attacks are common and can be difficult to defeat without cryptography. They are a subset of network injection attacks that rely on observing previously-sent valid commands, then changing them slightly if necessary and resending the same commands to the server.
Products Associated with CVE-2026-92120
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Affected Versions
Apache Software Foundation Apache Allura:- Before and including 1.21.0 is affected.