{ "document": { "aggregate_severity": { "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "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 Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" }, { "category": "details", "text": "Update to 2.50.6 to fix the following vulnerabilities (WSA-2026-0001):\n- CVE-2025-43213: type confusion in JavaScriptCore (fixed in 2.50.5)\n- CVE-2025-43214: out-of-bounds read in WebCore (fixed in 2.50.5)\n- CVE-2025-43457: integer overflow in WebKit canvas rendering (fixed in 2.50.6)\n- CVE-2025-43511: memory corruption in WebRTC (fixed in 2.50.5)\n- CVE-2026-20608: use-after-free in WebKit DOM (fixed in 2.50.6)\n- CVE-2026-20635: out-of-bounds access in JavaScriptCore (fixed in 2.50.6)\n- CVE-2026-20636: type confusion in WebAssembly (fixed in 2.50.6)\n- CVE-2026-20644: cross-origin issue in WebKit Storage (fixed in 2.50.6)\n- CVE-2026-20652: memory corruption in MediaStream (fixed in 2.50.6)\n- Disable %{gpgverify} step: upstream's signing key is DSA-1024 which\n EL9 crypto-policies reject; keyring retained for manual verification", "title": "Details" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1777543457", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1777543457" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/tuxcare9.6esu/advisories/2026/clsa-2026_1777543457.json" } ], "tracking": { "current_release_date": "2026-04-30T10:05:32Z", "generator": { "date": "2026-04-30T10:05:32Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1777543457", "initial_release_date": "2026-04-30T10:05:32Z", "revision_history": [ { "date": "2026-04-30T10:05:32Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "webkit2gtk3: Fix of 9 CVEs" }, "product_tree": 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memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.", "title": "Vulnerability description" }, { "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": { "fixed": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky 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use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.2, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.", "title": "Vulnerability description" }, { "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": { "fixed": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky 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"notes": [ { "category": "description", "text": "The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.", "title": "Vulnerability description" }, { "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": { "fixed": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky 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"integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2026-20635", "cwe": { "id": "CWE-120", "name": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')" }, "notes": [ { "category": "description", "text": "The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash.", "title": "Vulnerability description" }, { "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": { "fixed": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky 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"text": "The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A remote attacker may be able to cause a denial-of-service.", "title": "Vulnerability description" }, { "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": { "fixed": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64" ], 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Processing maliciously crafted web content may lead to an unexpected process crash.", "title": "Vulnerability description" }, { "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": { "fixed": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky 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"integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2026-20636", "cwe": { "id": "CWE-120", "name": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')" }, "notes": [ { "category": "description", "text": "The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash.", "title": "Vulnerability description" }, { "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": { "fixed": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky 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use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash.", "title": "Vulnerability description" }, { "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": { "fixed": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky 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"notes": [ { "category": "description", "text": "The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash.", "title": "Vulnerability description" }, { "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": { "fixed": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky 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"integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "AlmaLinux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-0:2.50.6-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:webkit2gtk3-jsc-devel-0:2.50.6-1.el9_6.tuxcare.els1.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }