CVE-2026-93752 CSSOM - Denial of Service

CSSOM through 0.5.0 contains a denial of service caused by failure to validate reserved property names in CSSStyleDeclaration.setProperty(), letting attackers trigger excessive memory allocation and process termination, exploit requires crafted stylesheet with reserved property.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.68% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-915

Vendor fix

Update to the latest version beyond 0.5.0.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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