MathJax Regular expression Denial of Service (ReDoS)

Description

Mathjax up to v2.7.9 was discovered to contain two Regular expression Denial of Service (ReDoS) vulnerabilities in MathJax.js via the components pattern and markdownPattern. NOTE: the vendor disputes this because the regular expressions are not applied to user input; thus, there is no risk.

Recommendation

No fix is available yet. Followings are affected versions:

• <= 2.7.9

References

• GHSA-v638-q856-grg8
• CVE-2023-39663
• CWE-1333
• CAPEC-310
• OWASP 2021-A6

Related Issues

• angular vulnerable to regular expression denial of service via the $resource service - CVE-2023-26117
• jsPDF Bypass Regular Expression Denial of Service (ReDoS) - CVE-2025-29907
• Regular Expression Denial of Service in Headers - CVE-2023-24807
• Marked allows Regular Expression Denial of Service (ReDoS) attacks - CVE-2018-25110

Tags:

npm

mathjax