{ "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": "* OpenJDK 8u492 release, build 9 (Oracle April 2026 CPU).\n Release notes:\n https://openjdk.org/groups/vulnerability/advisories/2026-04-21\n - Security fixes (8u492):\n + CVE-2026-22016: JAXP unauthorized data access via network\n + CVE-2026-34282: Networking denial of service (hang or repeatable crash)\n (CVE-2026-25646 libpng is not applicable to this package: openjdk-8\n is built with --with-libpng=system and system-libpng.diff strips the\n bundled AWT libpng; the fix lives in the libpng1.6 package.)\n * debian/rules: bump gh_tag to jdk8u492-ga, version_dash_buildnr to\n 492-b09, gh_tag_aarch32 to jdk8u492-b09-aarch32-20260428.\n * Refresh orig tarball from Ubuntu archive\n (openjdk-8_8u492-ga~us2.orig.tar.gz,\n sha1 6f80ef059e27dfc14c99f3c21990a1bc69b4d249,\n size 67951797 bytes; source: archive.ubuntu.com openjdk-8 8u492-ga~us2;\n content byte-identical to upstream jdk8u492-ga after DFSG scrub).\n * Refresh Ubuntu quilt patches for u492 context:\n - pass-extra-flags.diff (upstream removed hotspot vm.make; jsig.make\n hunk retained)\n - jdk-target-arch-define.diff (context drift only)\n - gcc14.diff (upstream removed splashscreen_stubs.c; remaining two\n hunks retained)\n All 48 quilt patches apply cleanly (0 rejects).\n * Ref: ELSCVE-134714, ELSCVE-134717", "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-2026:1783969255", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1783969255" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/ubuntu20.04els/advisories/2026/clsa-2026_1783969255.json" } ], "tracking": { "current_release_date": "2026-07-13T19:02:14Z", "generator": { "date": "2026-07-13T19:02:14Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1783969255", "initial_release_date": "2026-07-13T19:02:14Z", "revision_history": [ { "date": "2026-07-13T19:02:14Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "Fix CVE(s): CVE-2026-22016, CVE-2026-34282" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Ubuntu 20.04", "product": { "name": "Ubuntu 20.04", "product_id": "Ubuntu-20", "product_identification_helper": { "cpe": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*" } } } ], "category": "product_family", "name": "Ubuntu" } ], "category": "vendor", "name": "Canonical Ltd." }, { "branches": [ { "branches": [ { "category": "product_version", "name": 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"product_reference": "openjdk-8-jdk-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-20" }, { "category": "default_component_of", "full_product_name": { "name": "openjdk-8-jre-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64 as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:openjdk-8-jre-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64" }, "product_reference": "openjdk-8-jre-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-20" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-34282", "cwe": { "id": "CWE-835", "name": "Loop with Unreachable Exit Condition ('Infinite Loop')" }, "notes": [ { "category": "description", "text": "Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).", "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": [ "Ubuntu-20:openjdk-8-demo-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-doc-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all", "Ubuntu-20:openjdk-8-jdk-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jdk-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-zero-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-source-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all" ], "known_affected": [ "Ubuntu-20:openjdk-8-demo-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-doc-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.all", "Ubuntu-20:openjdk-8-jdk-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jdk-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-zero-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-source-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.all" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-34282" } ], "release_date": "2026-04-21T21:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-07-13T19:00:58.918912Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1783969255", "product_ids": [ "Ubuntu-20:openjdk-8-demo-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-doc-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all", "Ubuntu-20:openjdk-8-jdk-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jdk-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-zero-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-source-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1783969255" }, { "category": "none_available", "date": "2026-04-21T21:16:00Z", "details": "Affected", "product_ids": [ "Ubuntu-20:openjdk-8-demo-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-doc-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.all", "Ubuntu-20:openjdk-8-jdk-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jdk-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-zero-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-source-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.all" ] } ], "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": [ "Ubuntu-20:openjdk-8-demo-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-doc-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all", "Ubuntu-20:openjdk-8-jdk-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jdk-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-zero-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-source-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2026-22016", "cwe": { "id": "CWE-611", "name": "Improper Restriction of XML External Entity Reference" }, "notes": [ { "category": "description", "text": "Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JAXP). Supported versions that are affected are Oracle Java SE: 8u481, 8u481-b50, 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).", "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": [ "Ubuntu-20:openjdk-8-demo-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-doc-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all", "Ubuntu-20:openjdk-8-jdk-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jdk-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-zero-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-source-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all" ], "known_affected": [ "Ubuntu-20:openjdk-8-demo-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-doc-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.all", "Ubuntu-20:openjdk-8-jdk-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jdk-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-zero-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-source-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.all" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-22016" } ], "release_date": "2026-04-21T21:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-07-13T19:00:58.918912Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1783969255", "product_ids": [ "Ubuntu-20:openjdk-8-demo-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-doc-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all", "Ubuntu-20:openjdk-8-jdk-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jdk-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-zero-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-source-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1783969255" }, { "category": "none_available", "date": "2026-04-21T21:16:00Z", "details": "Affected", "product_ids": [ "Ubuntu-20:openjdk-8-demo-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-doc-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.all", "Ubuntu-20:openjdk-8-jdk-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jdk-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-headless-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-zero-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-source-0:8u482-ga~us1-0ubuntu1~20.04+tuxcare.els1.all" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" }, "products": [ "Ubuntu-20:openjdk-8-demo-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-doc-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all", "Ubuntu-20:openjdk-8-jdk-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jdk-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-headless-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-jre-zero-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.amd64", "Ubuntu-20:openjdk-8-source-0:8u492-ga~us2-0ubuntu1~20.04+tuxcare.els1.all" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }