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CVE-2026-59084 is a low-severity vulnerability in Apache Tomcat caused by insufficient technical documentation for the EncryptInterceptor. The issue stems from unclear documentation of the requirements necessary to configure the EncryptInterceptor securely, which could lead administrators to deploy the feature in an insecure manner. Affected versions are Apache Tomcat 11.0.0-M1 through 11.0.23, 10.1.0-M1 through 10.1.56, 9.0.13 through 9.0.119, 8.5.38 through 8.5.100, and 7.0.100 through 7.0.109. Other end-of-support versions may also be affected.
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No public exploit code observed for this vulnerability.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A low-severity Apache Tomcat vulnerability/documentation issue where the requirements to securely configure the EncryptInterceptor were not clearly documented.
A low-severity insufficient technical documentation vulnerability in Apache Tomcat where the requirements to securely configure the EncryptInterceptor were not clearly documented.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.