Red Hat Security Advisory: webkit2gtk3 security update
Multiple vulnerabilities have been identified in webkit2gtk3, the GTK port of the WebKit web rendering engine, affecting Red Hat Enterprise Linux 9. 6 Extended Update Support and related versions. These issues include crashes, denial-of-service, information disclosure, bypass of security policies such as Same Origin Policy and Content Security Policy, user tracking through Safari web extensions, fingerprinting, and cross-site scripting attacks. The vulnerabilities arise from processing maliciously crafted web content and may allow remote attackers to disrupt processes or compromise security controls. Red Hat has issued an important security advisory with updates addressing these vulnerabilities. Users of affected Red Hat products should apply the provided updates to remediate these issues.
AI Analysis
Technical Summary
Red Hat Product Security has released an important security advisory (RHSA-2026:11329) addressing 18 vulnerabilities in webkit2gtk3, the GTK port of the WebKit engine. The vulnerabilities include multiple instances where processing maliciously crafted web content can cause unexpected crashes (CVE-2025-43213, CVE-2025-43214, CVE-2025-43457, CVE-2025-43511, CVE-2026-20608, CVE-2026-20635, CVE-2026-20636, CVE-2026-20644, CVE-2026-20664, CVE-2026-28857), denial-of-service (CVE-2026-20652), information disclosure (CVE-2025-46299), bypass of Same Origin Policy (CVE-2026-20643), prevention of Content Security Policy enforcement (CVE-2026-20665), user tracking via Safari web extensions (CVE-2026-20676), user fingerprinting (CVE-2026-20691), processing restricted content outside the sandbox (CVE-2026-28859), and cross-site scripting (CVE-2026-28871). These vulnerabilities affect Red Hat Enterprise Linux 9.6 Extended Update Support and related packages. The advisory provides links to patches and instructions for remediation.
Potential Impact
The vulnerabilities can lead to unexpected process crashes causing denial-of-service conditions, potential information disclosure of internal application states, bypass of critical web security policies (Same Origin Policy and Content Security Policy), user tracking and fingerprinting, and cross-site scripting attacks. These impacts can compromise the confidentiality, integrity, and availability of affected systems running webkit2gtk3 on Red Hat Enterprise Linux 9.6 Extended Update Support. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated packages for webkit2gtk3 that address all listed vulnerabilities. Users of affected Red Hat Enterprise Linux 9.6 Extended Update Support versions should apply these official updates promptly to remediate the issues. Detailed instructions for applying the update are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: webkit2gtk3 security update
Description
Multiple vulnerabilities have been identified in webkit2gtk3, the GTK port of the WebKit web rendering engine, affecting Red Hat Enterprise Linux 9. 6 Extended Update Support and related versions. These issues include crashes, denial-of-service, information disclosure, bypass of security policies such as Same Origin Policy and Content Security Policy, user tracking through Safari web extensions, fingerprinting, and cross-site scripting attacks. The vulnerabilities arise from processing maliciously crafted web content and may allow remote attackers to disrupt processes or compromise security controls. Red Hat has issued an important security advisory with updates addressing these vulnerabilities. Users of affected Red Hat products should apply the provided updates to remediate these issues.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat Product Security has released an important security advisory (RHSA-2026:11329) addressing 18 vulnerabilities in webkit2gtk3, the GTK port of the WebKit engine. The vulnerabilities include multiple instances where processing maliciously crafted web content can cause unexpected crashes (CVE-2025-43213, CVE-2025-43214, CVE-2025-43457, CVE-2025-43511, CVE-2026-20608, CVE-2026-20635, CVE-2026-20636, CVE-2026-20644, CVE-2026-20664, CVE-2026-28857), denial-of-service (CVE-2026-20652), information disclosure (CVE-2025-46299), bypass of Same Origin Policy (CVE-2026-20643), prevention of Content Security Policy enforcement (CVE-2026-20665), user tracking via Safari web extensions (CVE-2026-20676), user fingerprinting (CVE-2026-20691), processing restricted content outside the sandbox (CVE-2026-28859), and cross-site scripting (CVE-2026-28871). These vulnerabilities affect Red Hat Enterprise Linux 9.6 Extended Update Support and related packages. The advisory provides links to patches and instructions for remediation.
Potential Impact
The vulnerabilities can lead to unexpected process crashes causing denial-of-service conditions, potential information disclosure of internal application states, bypass of critical web security policies (Same Origin Policy and Content Security Policy), user tracking and fingerprinting, and cross-site scripting attacks. These impacts can compromise the confidentiality, integrity, and availability of affected systems running webkit2gtk3 on Red Hat Enterprise Linux 9.6 Extended Update Support. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated packages for webkit2gtk3 that address all listed vulnerabilities. Users of affected Red Hat Enterprise Linux 9.6 Extended Update Support versions should apply these official updates promptly to remediate the issues. Detailed instructions for applying the update are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:11329
- Cve Count
- 18
- Additional Cves
- ["CVE-2025-43214","CVE-2025-43457","CVE-2025-43511","CVE-2025-46299","CVE-2026-20608","CVE-2026-20635","CVE-2026-20636","CVE-2026-20643","CVE-2026-20644","CVE-2026-20652","CVE-2026-20664","CVE-2026-20665","CVE-2026-20676","CVE-2026-20691","CVE-2026-28857","CVE-2026-28859","CVE-2026-28871"]
- Cvss Version
- null
Threat ID: 6a1df668e29bf47b504611d4
Added to database: 6/1/2026, 9:15:20 PM
Last enriched: 6/1/2026, 9:17:50 PM
Last updated: 6/2/2026, 6:47:07 AM
Views: 4
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