CVE-2020-28493
5.3 · MEDIUMOverview
CVE-2020-28493 is a medium-severity vulnerability affecting palletsprojects jinja. It was published on February 1, 2021 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from palletsprojects. Update jinja to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| palletsprojects | jinja | >= 0, < 2.11.3 | Affected |
References
Frequently Asked Questions
What is CVE-2020-28493?
CVE-2020-28493 is a medium-severity vulnerability affecting palletsprojects jinja. It was published on February 1, 2021 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2020-28493?
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-28493?
Check the references section for vendor advisories and patches from palletsprojects. Update jinja to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-28493?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-28493 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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