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{"bugzilla": {"description": "CSSOM: CSSOM: Denial of Service due to improper property name validation", "id": "2538672", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2538672"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["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.", "A flaw was found in CSSOM. This vulnerability allows a remote attacker to trigger a denial of service by providing a specially crafted stylesheet. The issue stems from improper validation of reserved property names within the `CSSStyleDeclaration.setProperty()` function. Exploiting this, an attacker can cause excessive memory allocation during CSS text serialization, leading to the termination of the affected process."], "name": "CVE-2026-93752", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "dotnet8.0", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana12.4", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana13.1", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana13.2", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "prometheus3.13", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-09-18T17:51:37Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-93752\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-93752\nhttps://github.com/NV/CSSOM\nhttps://github.com/NV/CSSOM/blob/00ec21868e12422581c81779135c2f1648441204/lib/CSSStyleDeclaration.js#L112-L124\nhttps://github.com/NV/CSSOM/blob/00ec21868e12422581c81779135c2f1648441204/lib/CSSStyleDeclaration.js#L41-L56\nhttps://github.com/NV/CSSOM/issues/119\nhttps://www.vulncheck.com/advisories/cssom-through-0.5.0-denial-of-service-via-length-property"], "threat_severity": "Important"}

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