CVE Catalog

CVE-2026-93752

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.47%

40th percentile - higher than 40% of all known CVEs

Summary

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.

Risk Assessment

The risk includes the possibility of application disruption via a denial-of-service attack, which may lead to service unavailability and data loss.

Recommendation

It is recommended to update the CSSOM library to the latest patched version and validate property names before setting them.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS