CVE-2024-39317

Advisory

Wagtail addresses a regular expression denial-of-service (ReDoS) vulnerability in search query parsing. A bug in Wagtail's 'parse_query_string' would result in it taking a long time to process suitably crafted inputs. When used to parse sufficiently long strings of characters without a space, 'parse_query_string' would take an unexpectedly large amount of time to process, resulting in a denial of service. In an initial Wagtail installation, the vulnerability can be exploited by any Wagtail admin user. It cannot be exploited by end users. If your Wagtail site has a custom search implementation which uses 'parse_query_string', it may be exploitable by other users (e.g. unauthenticated users).

Affected package

Affected versions

Fixed versions

Vulnerability changelog

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* Fix: CVE-2024-39317: Regular expression denial-of-service via search query parsing (Jake Howard)
* Fix: Fix image preview when Willow optimizers are enabled (Alex Tomkins)
* Maintenance: Remove django-pattern-library upper bound in testing dependencies (Sage Abdullah)

Resources

• https://github.com/wagtail/wagtail/commit/31b1e8532dfb1b70d8d37d22aff9cbde9109cdf2
• https://github.com/wagtail/wagtail/commit/3c941136f79c48446e3858df46e5b668d7f83797
• https://github.com/wagtail/wagtail/commit/b783c096b6d4fd2cfc05f9137a0be288850e99a2
• https://pypi.org/project/wagtail
• https://data.safetycli.com/changelogs/wagtail/
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39317