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Apache Tomcat maintainers disclosed and patched CVE-2024-50379, a critical remote code execution flaw tied to the default servlet when write access is enabled. The bug is a TOCTOU race condition during JSP compilation that can let an unauthenticated attacker upload specially crafted files and execute code on vulnerable servers under specific conditions. The issue affects Tomcat 11.0.x before 11.0.2, 10.1.x before 10.1.34, and 9.0.x before 9.0.98.
Advisories also addressed CVE-2024-54677, a separate denial-of-service issue in Tomcat sample web applications caused by unrestricted total upload size. Defenders were urged to upgrade immediately to 11.0.2, 10.1.34, or 9.0.98, and to review deployments that expose write-enabled default servlet functionality or retain sample applications in production.
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2 events from the most recent confirmed update back to the earliest known activity.
An Apache security notice disclosed CVE-2024-50379 affecting Apache Tomcat, describing an RCE issue involving the write-enabled default servlet.
Apache Tomcat developers released security updates addressing the critical CVE-2024-50379 and CVE-2024-54677. The fixes were issued in Tomcat 11.0.2, 10.1.34, and 9.0.98, with guidance to upgrade immediately.
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Two significant vulnerabilities have been identified in Apache Tomcat, each with distinct attack vectors and impacts. CVE-2025-61795 is an improper resource shutdown or release vulnerability that can lead to a denial-of-service (DoS) condition if temporary files from multipart uploads are not cleaned up promptly, potentially exhausting disk space and exposing sensitive data. This issue affects Tomcat versions 11.0.0-M1 through 11.0.11, 10.1.0-M1 through 10.1.46, 9.0.0.M1 through 9.0.109, and several end-of-life versions, with patches available in 11.0.12, 10.1.47, and 9.0.110 and later. CVE-2025-55752 is a relative path traversal vulnerability introduced by a regression in the fix for a previous bug, allowing attackers to bypass security constraints and potentially upload malicious files if specific, non-default configurations are present. This vulnerability affects Tomcat versions 11.0.0-M1 through 11.0.10, 10.1.0-M1 through 10.1.44, 9.0.0.M11 through 9.0.108, and certain EOL versions, with fixes in 11.0.11, 10.1.45, and 9.0.109 and later. Both vulnerabilities require prompt attention from administrators, especially those running affected Tomcat versions. The DoS vulnerability (CVE-2025-61795) can be exploited by attackers to exhaust server resources, while the path traversal flaw (CVE-2025-55752) could lead to remote code execution under specific conditions. Organizations are advised to upgrade to the latest patched versions to mitigate these risks and review their Tomcat configurations to ensure that non-default features such as HTTP PUT requests and URL rewriting are not unnecessarily enabled.
Jun 29, 2026
Apache Tomcat released security updates addressing two critical vulnerabilities: a URL rewrite bypass (CVE-2025-55752) that could allow directory traversal and potential remote code execution (RCE) if the HTTP PUT method is enabled, and a console ANSI injection flaw (CVE-2025-55754) that could enable manipulation of log messages via escape sequences. The affected versions include Tomcat 11.0.0-M1 to 11.0.10, 10.1.0-M1 to 10.1.44, and 9.0.0.M11 to 9.0.108, with users and administrators urged to apply the necessary patches immediately to mitigate risk. The URL rewrite bypass vulnerability allows attackers to craft malicious requests that evade security controls, potentially leading to unauthorized file access or code execution on vulnerable servers. The console ANSI injection issue could be exploited to alter log output, possibly obscuring malicious activity or facilitating further attacks. Security advisories from both Apache and national cybersecurity authorities emphasize the importance of prompt remediation to prevent exploitation in the wild.
Jun 29, 2026
Apache Tomcat released security updates addressing several vulnerabilities across supported branches, including **CVE-2026-59083**, an incorrect URL decoding flaw in `RewriteValve` that can let attackers bypass security constraints in some configurations, and **CVE-2026-59084**, a documentation-related weakness that left `EncryptInterceptor` deployments without clearly defined secure configuration requirements. Apache said affected versions span Tomcat 11, 10.1, 9.0, and 8.5 releases, with some unsupported end-of-life versions potentially exposed as well. Separate Tomcat advisories also described additional patched issues, including **CVE-2026-53434**, an invalid CRL configuration vulnerability rated **CVSS 9.1**, **CVE-2026-50229**, a cross-site scripting flaw in the Number Guess example, and other fixes tracked as **CVE-2026-53404**, **CVE-2026-55276**, **CVE-2026-55955**, and **CVE-2026-55956**. Organizations were urged to test and deploy updated releases, with Apache recommending upgrades to **11.0.24**, **10.1.57**, and **9.0.120** to remediate the newly disclosed issues.
Jul 15, 2026