Vulnerability Description
CSSOM through 0.5.0 contains a denial of service vulnerability in CSSStyleDeclaration.setProperty() that fails to validate reserved property names. Attackers can supply a stylesheet with a declaration named length to replace the internal counter and trigger excessive memory allocation during cssText serialization, causing process termination.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/NV/CSSOM
- https://github.com/NV/CSSOM/blob/00ec21868e12422581c81779135c2f1648441204/lib/CS
- https://github.com/NV/CSSOM/blob/00ec21868e12422581c81779135c2f1648441204/lib/CS
- https://github.com/NV/CSSOM/issues/119
- https://www.vulncheck.com/advisories/cssom-through-0.5.0-denial-of-service-via-l
- https://github.com/NV/CSSOM/issues/119
FAQ
What is CVE-2026-93752?
CVE-2026-93752 is a vulnerability with a CVSS score of 7.5 (HIGH). CSSOM through 0.5.0 contains a denial of service vulnerability in CSSStyleDeclaration.setProperty() that fails to validate reserved property names. Attackers can supply a stylesheet with a declaration...
How severe is CVE-2026-93752?
CVE-2026-93752 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-2026-93752?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.