USN-8743-1

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USN-8743-1

Summary: php8.1, php8.3, php8.5 vulnerabilities

Details: It was discovered that PHP incorrectly handled backslash escaping in the PostgreSQL extension. An attacker could use this issue to perform SQL injection attacks. (CVE-2026-17543) It was discovered that PHP incorrectly handled certain inputs to the bccomp() function. An attacker could use this issue to cause an out-of- bounds write, resulting in a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-17544) It was discovered that PHP incorrectly handled circular symbolic links in phar archives. An attacker could use this issue to cause unbounded recursion, resulting in a denial of service. (CVE-2026-7260)

References: https://ubuntu.com/security/notices/USN-8743-1, https://ubuntu.com/security/CVE-2026-7260, https://ubuntu.com/security/CVE-2026-17543, https://ubuntu.com/security/CVE-2026-17544