{ "document": { "aggregate_severity": { "text": "Critical" }, "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": "CVE-2026-24400: fix XML External Entity (XXE) injection in XmlStringPrettyFormatter", "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-2026:1788881384", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1788881384" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/almalinux9.2esu/advisories/2026/clsa-2026_1788881384.json" } ], "tracking": { "current_release_date": "2026-09-08T15:30:22Z", "generator": { "date": "2026-09-08T15:30:22Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1788881384", "initial_release_date": "2026-09-08T15:30:22Z", "revision_history": [ { "date": "2026-09-08T15:30:22Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "assertj-core: Fix of CVE-2026-24400" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "AlmaLinux 9.2", "product": { "name": "AlmaLinux 9.2", "product_id": "AlmaLinux-9.2", "product_identification_helper": { "cpe": "cpe:2.3:o:almalinux:almalinux:9.2:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "AlmaLinux" } ], "category": "vendor", "name": "AlmaLinux OS Foundation" }, { "branches": [ { "branches": [ { "category": "product_version", "name": "assertj-core-javadoc-0:3.19.0-5.el9_2.tuxcare.els1.noarch", "product": { "name": "assertj-core-javadoc-0:3.19.0-5.el9_2.tuxcare.els1.noarch", "product_id": "assertj-core-javadoc-0:3.19.0-5.el9_2.tuxcare.els1.noarch", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/assertj-core-javadoc@3.19.0-5.el9_2.tuxcare.els1?arch=noarch" } } }, { "category": "product_version", "name": "assertj-core-0:3.19.0-5.el9_2.tuxcare.els1.noarch", "product": { "name": "assertj-core-0:3.19.0-5.el9_2.tuxcare.els1.noarch", "product_id": "assertj-core-0:3.19.0-5.el9_2.tuxcare.els1.noarch", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/assertj-core@3.19.0-5.el9_2.tuxcare.els1?arch=noarch" } } } ], "category": "architecture", "name": "noarch" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "assertj-core-javadoc-0:3.19.0-5.el9_2.tuxcare.els1.noarch as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:assertj-core-javadoc-0:3.19.0-5.el9_2.tuxcare.els1.noarch" }, "product_reference": "assertj-core-javadoc-0:3.19.0-5.el9_2.tuxcare.els1.noarch", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "assertj-core-0:3.19.0-5.el9_2.tuxcare.els1.noarch as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:assertj-core-0:3.19.0-5.el9_2.tuxcare.els1.noarch" }, "product_reference": "assertj-core-0:3.19.0-5.el9_2.tuxcare.els1.noarch", "relates_to_product_reference": "AlmaLinux-9.2" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-24400", "cwe": { "id": "CWE-611", "name": "Improper Restriction of XML External Entity Reference" }, "notes": [ { "category": "description", "text": "AssertJ provides Fluent testing assertions for Java and the Java Virtual Machine (JVM). Starting in version 1.4.0 and prior to version 3.27.7, an XML External Entity (XXE) vulnerability exists in `org.assertj.core.util.xml.XmlStringPrettyFormatter`: the `toXmlDocument(String)` method initializes `DocumentBuilderFactory` with default settings, without disabling DTDs or external entities. This formatter is used by the `isXmlEqualTo(CharSequence)` assertion for `CharSequence` values. An application is vulnerable only when it uses untrusted XML input with either `isXmlEqualTo(CharSequence)` from `org.assertj.core.api.AbstractCharSequenceAssert` or `xmlPrettyFormat(String)` from `org.assertj.core.util.xml.XmlStringPrettyFormatter`. If untrusted XML input is processed by tone of these methods, an attacker couldnread arbitrary local files via `file://` URIs (e.g., `/etc/passwd`, application configuration files); perform Server-Side Request Forgery (SSRF) via HTTP/HTTPS URIs, and/or cause Denial of Service via \"Billion Laughs\" entity expansion attacks. `isXmlEqualTo(CharSequence)` has been deprecated in favor of XMLUnit in version 3.18.0 and will be removed in version 4.0. Users of affected versions should, in order of preference: replace `isXmlEqualTo(CharSequence)` with XMLUnit, upgrade to version 3.27.7, or avoid using `isXmlEqualTo(CharSequence)` or `XmlStringPrettyFormatter` with untrusted input. `XmlStringPrettyFormatter` has historically been considered a utility for `isXmlEqualTo(CharSequence)` rather than a feature for AssertJ users, so it is deprecated in version 3.27.7 and removed in version 4.0, with no replacement.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.2:assertj-core-0:3.19.0-5.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:assertj-core-javadoc-0:3.19.0-5.el9_2.tuxcare.els1.noarch" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-24400" }, { "category": "external", "summary": "https://cheatsheetseries.owasp.org/cheatsheets/XML_External_Entity_Prevention_Cheat_Sheet.html", "url": "https://cheatsheetseries.owasp.org/cheatsheets/XML_External_Entity_Prevention_Cheat_Sheet.html" }, { "category": "external", "summary": "https://github.com/assertj/assertj/commit/85ca7eb6609bb179c043b85ae7d290523b1ba79a", "url": "https://github.com/assertj/assertj/commit/85ca7eb6609bb179c043b85ae7d290523b1ba79a" }, { "category": "external", "summary": "https://github.com/assertj/assertj/releases/tag/assertj-build-3.27.7", "url": "https://github.com/assertj/assertj/releases/tag/assertj-build-3.27.7" }, { "category": "external", "summary": "https://github.com/assertj/assertj/security/advisories/GHSA-rqfh-9r24-8c9r", "url": "https://github.com/assertj/assertj/security/advisories/GHSA-rqfh-9r24-8c9r" } ], "release_date": "2026-01-26T23:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-09-08T15:29:46.698698Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1788881384", "product_ids": [ "AlmaLinux-9.2:assertj-core-0:3.19.0-5.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:assertj-core-javadoc-0:3.19.0-5.el9_2.tuxcare.els1.noarch" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1788881384" } ], "threats": [ { "category": "impact", "details": "Critical" } ] } ] }