{"document":{"aggregate_severity":{"namespace":"https://access.redhat.com/security/updates/classification/","text":"Important"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright © Red Hat, Inc. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"legal_disclaimer","text":"This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.","title":"Terms of Use"}],"publisher":{"category":"vendor","contact_details":"https://access.redhat.com/security/team/contact/","issuing_authority":"Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.","name":"Red Hat Product Security","namespace":"https://www.redhat.com"},"references":[{"category":"self","summary":"Canonical URL","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93752.json"}],"title":"CSSOM: CSSOM: Denial of Service due to improper property name validation","tracking":{"current_release_date":"2026-09-22T22:13:51+00:00","generator":{"date":"2026-09-22T22:13:51+00:00","engine":{"name":"Red Hat SDEngine","version":"5.4.0"}},"id":"CVE-2026-93752","initial_release_date":"2026-09-18T17:51:37.079000+00:00","revision_history":[{"date":"2026-09-18T17:51:37.079000+00:00","number":"1","summary":"Initial version"},{"date":"2026-09-22T20:51:27.287088+00:00","number":"2","summary":"Current version"},{"date":"2026-09-22T22:13:51+00:00","number":"3","summary":"Last generated version"}],"status":"final","version":"3"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"Red Hat Hardened Images","product":{"name":"Red Hat Hardened Images","product_id":"red_hat_hardened_images","product_identification_helper":{"cpe":"cpe:/a:redhat:hummingbird:1"}}}],"category":"product_family","name":"Red Hat Hardened Images"},{"category":"product_version","name":"dotnet8.0.src","product":{"name":"dotnet8.0.src","product_id":"dotnet8.0.src","product_identification_helper":{"purl":"pkg:rpm/redhat/dotnet8.0@8.0.130-0.1.hum1?arch=src"}}},{"category":"product_version","name":"grafana12.4.src","product":{"name":"grafana12.4.src","product_id":"grafana12.4.src","product_identification_helper":{"purl":"pkg:rpm/redhat/grafana12.4@12.4.10-0.6.hum1?arch=src"}}},{"category":"product_version","name":"grafana13.1.src","product":{"name":"grafana13.1.src","product_id":"grafana13.1.src","product_identification_helper":{"purl":"pkg:rpm/redhat/grafana13.1@13.1.6-0.2.hum1?arch=src"}}},{"category":"product_version","name":"grafana13.2.src","product":{"name":"grafana13.2.src","product_id":"grafana13.2.src","product_identification_helper":{"purl":"pkg:rpm/redhat/grafana13.2@13.2.1-0.5.hum1?arch=src"}}},{"category":"product_version","name":"prometheus3.13.src","product":{"name":"prometheus3.13.src","product_id":"prometheus3.13.src","product_identification_helper":{"purl":"pkg:rpm/redhat/prometheus3.13@3.13.3-0.1.hum1?arch=src"}}}],"category":"vendor","name":"Red Hat"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"dotnet8.0.src as a component of Red Hat Hardened Images","product_id":"red_hat_hardened_images:dotnet8.0.src"},"product_reference":"dotnet8.0.src","relates_to_product_reference":"red_hat_hardened_images"},{"category":"default_component_of","full_product_name":{"name":"grafana12.4.src as a component of Red Hat Hardened Images","product_id":"red_hat_hardened_images:grafana12.4.src"},"product_reference":"grafana12.4.src","relates_to_product_reference":"red_hat_hardened_images"},{"category":"default_component_of","full_product_name":{"name":"grafana13.1.src as a component of Red Hat Hardened Images","product_id":"red_hat_hardened_images:grafana13.1.src"},"product_reference":"grafana13.1.src","relates_to_product_reference":"red_hat_hardened_images"},{"category":"default_component_of","full_product_name":{"name":"grafana13.2.src as a component of Red Hat Hardened Images","product_id":"red_hat_hardened_images:grafana13.2.src"},"product_reference":"grafana13.2.src","relates_to_product_reference":"red_hat_hardened_images"},{"category":"default_component_of","full_product_name":{"name":"prometheus3.13.src as a component of Red Hat Hardened Images","product_id":"red_hat_hardened_images:prometheus3.13.src"},"product_reference":"prometheus3.13.src","relates_to_product_reference":"red_hat_hardened_images"}]},"vulnerabilities":[{"cve":"CVE-2026-93752","cwe":{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"},"discovery_date":"2026-09-22T19:57:01.556304+00:00","ids":[{"system_name":"Red Hat Bugzilla ID","text":"2538672"}],"notes":[{"category":"description","text":"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.","title":"Vulnerability description"},{"category":"summary","text":"CSSOM: CSSOM: Denial of Service due to improper property name validation","title":"Vulnerability summary"},{"category":"general","text":"The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.","title":"CVSS score applicability"}],"product_status":{"known_affected":["red_hat_hardened_images:dotnet8.0.src","red_hat_hardened_images:grafana12.4.src","red_hat_hardened_images:grafana13.1.src","red_hat_hardened_images:grafana13.2.src","red_hat_hardened_images:prometheus3.13.src"]},"references":[{"category":"self","summary":"Canonical URL","url":"https://access.redhat.com/security/cve/CVE-2026-93752"},{"category":"external","summary":"RHBZ#2538672","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2538672"},{"category":"external","summary":"https://www.cve.org/CVERecord?id=CVE-2026-93752","url":"https://www.cve.org/CVERecord?id=CVE-2026-93752"},{"category":"external","summary":"https://nvd.nist.gov/vuln/detail/CVE-2026-93752","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93752"},{"category":"external","summary":"https://github.com/NV/CSSOM","url":"https://github.com/NV/CSSOM"},{"category":"external","summary":"https://github.com/NV/CSSOM/blob/00ec21868e12422581c81779135c2f1648441204/lib/CSSStyleDeclaration.js#L112-L124","url":"https://github.com/NV/CSSOM/blob/00ec21868e12422581c81779135c2f1648441204/lib/CSSStyleDeclaration.js#L112-L124"},{"category":"external","summary":"https://github.com/NV/CSSOM/blob/00ec21868e12422581c81779135c2f1648441204/lib/CSSStyleDeclaration.js#L41-L56","url":"https://github.com/NV/CSSOM/blob/00ec21868e12422581c81779135c2f1648441204/lib/CSSStyleDeclaration.js#L41-L56"},{"category":"external","summary":"https://github.com/NV/CSSOM/issues/119","url":"https://github.com/NV/CSSOM/issues/119"},{"category":"external","summary":"https://www.vulncheck.com/advisories/cssom-through-0.5.0-denial-of-service-via-length-property","url":"https://www.vulncheck.com/advisories/cssom-through-0.5.0-denial-of-service-via-length-property"}],"release_date":"2026-09-18T17:51:37.079000+00:00","remediations":[{"category":"none_available","details":"Affected","product_ids":["red_hat_hardened_images:dotnet8.0.src","red_hat_hardened_images:grafana12.4.src","red_hat_hardened_images:grafana13.1.src","red_hat_hardened_images:grafana13.2.src","red_hat_hardened_images:prometheus3.13.src"]}],"scores":[{"cvss_v3":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"products":["red_hat_hardened_images:dotnet8.0.src","red_hat_hardened_images:grafana12.4.src","red_hat_hardened_images:grafana13.1.src","red_hat_hardened_images:grafana13.2.src","red_hat_hardened_images:prometheus3.13.src"]}],"threats":[{"category":"impact","details":"Important","product_ids":["red_hat_hardened_images:dotnet8.0.src","red_hat_hardened_images:grafana12.4.src","red_hat_hardened_images:grafana13.1.src","red_hat_hardened_images:grafana13.2.src","red_hat_hardened_images:prometheus3.13.src"]}],"title":"CSSOM: CSSOM: Denial of Service due to improper property name validation"}]}