Vulnerability Description
In mistune through 2.0.2, support of inline markup is implemented by using regular expressions that can involve a high amount of backtracking on certain edge cases. This behavior is commonly named catastrophic backtracking.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mistune Project | Mistune | <= 2.0.2 |
| Fedoraproject | Fedora | 37 |
Related Weaknesses (CWE)
References
- https://github.com/lepture/mistune/commit/a6d43215132fe4f3d93f8d7e90ba83b16a0838PatchThird Party Advisory
- https://github.com/lepture/mistune/releasesRelease NotesThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://github.com/lepture/mistune/commit/a6d43215132fe4f3d93f8d7e90ba83b16a0838PatchThird Party Advisory
- https://github.com/lepture/mistune/releasesRelease NotesThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2022-34749?
CVE-2022-34749 is a vulnerability with a CVSS score of 7.5 (HIGH). In mistune through 2.0.2, support of inline markup is implemented by using regular expressions that can involve a high amount of backtracking on certain edge cases. This behavior is commonly named cat...
How severe is CVE-2022-34749?
CVE-2022-34749 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-34749?
Check the references section above for vendor advisories and patch information. Affected products include: Mistune Project Mistune, Fedoraproject Fedora.