CVE detail
CVE-2026-34486: Apache Tomcat Missing Encryption of Sensitive Data Vulnerability
Source: CISA Known Exploited Vulnerabilities catalog · back to feed
Vendor / product
Apache · Tomcat
- Date added (KEV)
- Aug 04, 2026
- CISA due date
- Aug 07, 2026
- Ransomware campaign use
- Unknown
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Vendor fix: Vendor advisory
Scorifya interpretation
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Plain English
Technical detail
From CISA
Apache Tomcat contains a missing encryption of sensitive data vulnerability that allows the bypass of the EncryptInterceptor.
https://lists.apache.org/thread/9510k5p5zdvt9pkkgtyp85mvwxo2qrly ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-34486
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See Scorifya Controls →References
- https://lists.apache.org/thread/9510k5p5zdvt9pkkgtyp85mvwxo2qrlyMailing ListVendor Advisory
- https://www.vicarius.io/vsociety/posts/cve-2026-34486-mitigation-script-rce-on-apache-tomcatMitigationThird Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2026-34486-detection-script-rce-on-apache-tomcatThird Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36787Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36788Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36789Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36790Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36876Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36877Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36878Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36879Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:37136Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:37137Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:38505Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:39188Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:39189Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-34486Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2457027Issue TrackingThird Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34486.jsonThird Party Advisory
- https://socradar.io/blog/snowlight-government-chinese-campaign/Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34486US Government Resource
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