This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: snyk

Published: 2021-02-01T19:30:16.601731Z

Updated: 2024-09-16T17:24:01.606Z

Reserved: 2020-11-12T00:00:00

Link: CVE-2020-28493

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-02-01T20:15:12.517

Modified: 2024-11-21T05:22:54.013

Link: CVE-2020-28493

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-02-01T00:00:00Z

Links: CVE-2020-28493 - Bugzilla