CVE-2021-32763: Regular Expression Denial of Service in OpenProject forum messages
opf · openproject
Vendor fix available · Affected: opf openproject · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 60% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- opf · openproject< 11.3.3
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CoverageNo articles yet
No CyberSIXT article names CVE-2021-32763 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.