ESB-2026.3860

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3860 USN-8181-1: ESAPI vulnerabilities 17 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: ESAPI Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2022-23457 CVE-2022-24891 CVE-2025-5878 Original Bulletin: https://ubuntu.com/security/notices/USN-8181-1 Comment: CVSS (Max): 7.5 CVE-2022-23457 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) CVSS Source: Ubuntu Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H EPSS (Max): 1.0% (77th) CVE-2022-24891 2026-04-16 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-8181-1: ESAPI vulnerabilities Publication date 16 April 2026 Overview Several security issues were fixed in ESAPI. Releases 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS 16.04 LTS --------------------------------------------------------------------------------- Open side navigation Packages o libowasp-esapi-java - Web application security control library from OWASP Details Jaroslav Lobacevski discovered that ESAPI incorrectly validated directory paths during path verification. An attacker could possibly use this issue to bypass directory validation checks, leading to control-flow bypass. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. ( CVE-2022-23457 ) Kevin W. Wall and Sebastian Passaro discovered that ESAPI did not properly sanitize javascript URLs because of an incorrect regular expression. An attacker could possibly use this issue to perform a cross-site scripting attack. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. ( CVE-2022-24891 ) Longlong Gong discovered that ESAPI did not properly neutralize special elements during SQL injection defense. A remote attacker could possibly use this issue to perform SQL injection. ( CVE-2025-5878 ) --------------------------------------------------------------------------------- Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu Package Version Release 24.04 LTS libowasp-esapi-java - 2.4.0.0-2ubuntu0.1 noble libowasp-esapi-java - 2.2.3.1-1ubuntu0.1~esm1 Ubuntu Pro Fix available 22.04 with Ubuntu Pro via ESM Apps. A community fix might become publicly LTS available in the future. jammy libowasp-esapi-java-doc - 2.2.3.1-1ubuntu0.1~esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. libowasp-esapi-java - 2.1.0-3ubuntu0.20.04.1~esm1 Ubuntu Pro Fix 20.04 available with Ubuntu Pro via ESM Apps. A community fix might become LTS publicly available in the future. focal libowasp-esapi-java-doc - 2.1.0-3ubuntu0.20.04.1~esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. libowasp-esapi-java - 2.1.0-3ubuntu0.18.04.1~esm1 Ubuntu Pro Fix 18.04 available with Ubuntu Pro via ESM Apps. A community fix might become LTS publicly available in the future. bionic libowasp-esapi-java-doc - 2.1.0-3ubuntu0.18.04.1~esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. libowasp-esapi-java - 2.1.0-2ubuntu0.1~esm1 Ubuntu Pro Fix available 16.04 with Ubuntu Pro via ESM Apps. A community fix might become publicly LTS available in the future. xenial libowasp-esapi-java-doc - 2.1.0-2ubuntu0.1~esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. --------------------------------------------------------------------------------- References o CVE-2025-5878 o CVE-2022-24891 o CVE-2022-23457 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. 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