Red Hat Security Advisory: webkit2gtk3 security update
Red Hat has issued a security advisory for webkit2gtk3 addressing two vulnerabilities in WebKitGTK, the WebKit port for the GTK platform. The first vulnerability (CVE-2025-31205) allows a malicious website to exfiltrate data cross-origin. The second (CVE-2025-31257) can cause an unexpected Safari crash when processing maliciously crafted web content. These issues have been rated with high severity by Red Hat. Updates are available for Red Hat Enterprise Linux 9.4 Extended Update Support and related variants to remediate these vulnerabilities.
AI Analysis
Technical Summary
This advisory covers two security vulnerabilities in WebKitGTK, the GTK port of the WebKit rendering engine. CVE-2025-31205 involves cross-origin data exfiltration by malicious websites, classified under CWE-200 (Information Exposure). CVE-2025-31257 involves a crash triggered by malicious web content, classified under CWE-416 (Use After Free). Red Hat has released updated webkit2gtk3 packages for Red Hat Enterprise Linux 9.4 Extended Update Support and related product variants to address these issues. The advisory references Red Hat Bugzilla entries BZ-2366501 and BZ-2366504 for the respective CVEs. No CVSS scores are provided in the advisory.
Potential Impact
Successful exploitation of CVE-2025-31205 could allow a malicious website to exfiltrate data across origins, potentially leading to unauthorized data disclosure. CVE-2025-31257 could cause an unexpected crash of the Safari browser when processing crafted web content, potentially leading to denial of service. Both vulnerabilities affect the web rendering component used in Red Hat Enterprise Linux 9.4 Extended Update Support and related variants.
Mitigation Recommendations
Red Hat has released updated webkit2gtk3 packages (version 2.48.2-1.el9_4) that address these vulnerabilities. Users should apply these official updates to affected Red Hat Enterprise Linux 9.4 Extended Update Support systems and related variants. Before applying this update, ensure all previously released errata relevant to your system have been applied. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258 for detailed guidance. No additional mitigations or workarounds are specified in the advisory.
Red Hat Security Advisory: webkit2gtk3 security update
Description
Red Hat has issued a security advisory for webkit2gtk3 addressing two vulnerabilities in WebKitGTK, the WebKit port for the GTK platform. The first vulnerability (CVE-2025-31205) allows a malicious website to exfiltrate data cross-origin. The second (CVE-2025-31257) can cause an unexpected Safari crash when processing maliciously crafted web content. These issues have been rated with high severity by Red Hat. Updates are available for Red Hat Enterprise Linux 9.4 Extended Update Support and related variants to remediate these vulnerabilities.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers two security vulnerabilities in WebKitGTK, the GTK port of the WebKit rendering engine. CVE-2025-31205 involves cross-origin data exfiltration by malicious websites, classified under CWE-200 (Information Exposure). CVE-2025-31257 involves a crash triggered by malicious web content, classified under CWE-416 (Use After Free). Red Hat has released updated webkit2gtk3 packages for Red Hat Enterprise Linux 9.4 Extended Update Support and related product variants to address these issues. The advisory references Red Hat Bugzilla entries BZ-2366501 and BZ-2366504 for the respective CVEs. No CVSS scores are provided in the advisory.
Potential Impact
Successful exploitation of CVE-2025-31205 could allow a malicious website to exfiltrate data across origins, potentially leading to unauthorized data disclosure. CVE-2025-31257 could cause an unexpected crash of the Safari browser when processing crafted web content, potentially leading to denial of service. Both vulnerabilities affect the web rendering component used in Red Hat Enterprise Linux 9.4 Extended Update Support and related variants.
Mitigation Recommendations
Red Hat has released updated webkit2gtk3 packages (version 2.48.2-1.el9_4) that address these vulnerabilities. Users should apply these official updates to affected Red Hat Enterprise Linux 9.4 Extended Update Support systems and related variants. Before applying this update, ensure all previously released errata relevant to your system have been applied. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258 for detailed guidance. No additional mitigations or workarounds are specified in the 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-2025:8534
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-31257"]
Threat ID: 6a4049e327e9c797198336c6
Added to database: 06/27/2026, 22:08:35 UTC
Last enriched: 06/27/2026, 22:31:44 UTC
Last updated: 09/10/2026, 19:36:50 UTC
Views: 13
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