Apache Struts fixes a high-severity vulnerability

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[TLP:CLEAR] Apache Struts fixes a high-severity vulnerability

Apache Struts versions 6.8.0 and 7.1.1 fix a high-severity vulnerability [1].

Apache Struts - DoS (CVE-2025-66675)

CVSS 8.2 (High)

An unauthenticated remote attacker can perform a DoS attack by sending specially crafted requests [2][3]. The vulnerability can be exploited if file upload support is enabled in the framework. If an immediate update is not possible, the risk can be mitigated by defining a temporary folder for uploaded files on a dedicated disk partition, limiting its maximum size, or disabling file upload support entirely [2]. The vulnerability is an extension of the original CVE-2025-64775 [4].

The vulnerability is present in product:

Apache Struts; >=2.0.0, <=2.3.37; >=2.5.0, <=2.5.33; >=6.0.0, <=6.7.4; >=7.0.0, <=7.0.3;

CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

More information:

CVE-2025-66675 at cve.org, NVD
CWE-459: Incomplete Cleanup at cwe.mitre.org

The vulnerability was publicly disclosed 10. 12. 2025.

Links

By CESNET, z.s.p.o. Michaela Ručková on 15. 12. 2025.

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[TLP:CLEAR] Apache Struts fixes a high-severity vulnerability

Apache Struts - DoS (CVE-2025-66675)

CVSS 8.2 (High)

Links