OpenProject is open-source, web-based project management software. In versions prior to 11.3.3, the `MessagesController` class of OpenProject has a `quote` method that implements the logic behind the Quote button in the discussion forums, and it uses a regex to strip `<pre>` tags from the message being quoted. The `(.|\s)` part can match a space character in two ways, so an unterminated `<pre>` tag containing `n` spaces causes Ruby's regex engine to backtrack to try 2<sup>n</sup> states in the NFA. This will result in a Regular Expression Denial of Service. The issue is fixed in OpenProject 11.3.3. As a workaround, one may install the patch manually.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2021-07-20T16:50:10

Updated: 2024-08-03T23:33:55.735Z

Reserved: 2021-05-12T00:00:00

Link: CVE-2021-32763

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-07-20T17:15:07.813

Modified: 2022-04-25T19:07:01.907

Link: CVE-2021-32763

cve-icon Redhat

No data.