CVE-2020-28493
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.
- Affected products
- Almalinux, Astra Linux, Centos, Linuxmint, Red Hat, Rocky Linux, Suse, Ubuntu
- Palletsprojects Jinja
- < 2.11.3
- Fix
- Available
- CVSS 3.1
- 5.3 MEDIUM
- EPSS
- 3.5% (89th percentile)
- Weakness
- CWE-400
- NVD status
- Modified
- Published
- 2021-02-01
CVE-2020-28493 at NVD
No indexed exploits for CVE-2020-28493 yet
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No exploit for CVE-2020-28493 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.