CVE-2021-32763: OpenProject is open-source, web-based project management software. In versions prior to 11.3.3, the `MessagesController` class of OpenProject has a `quote`…

PriorityP431medium6.5CVSS 3.1

AVNACLPRLUINSUCNINAH

EPSS

0.92%

55.8th percentile

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 `` tags from the message being quoted. The `(.|\s)` part can match a space character in two ways, so an unterminated `` tag containing `n` spaces causes Ruby's regex engine to backtrack to try 2n 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

2 ranges

Vendor	Product	Version range	Fixed in
openproject	openproject	< 11.3.3	11.3.3
opf	openproject	< 11.3.3	11.3.3

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P

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