{ "id": "CVE-2026-34486", "url": "https://spydr.io/cve/CVE-2026-34486", "published": "2026-04-09T20:16:25.063Z", "modified": "2026-09-21T19:17:04.670Z", "score": 7.5, "severity": "high", "cvss_version": "3.1", "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "score_source": "CISA ADP", "epss": 0.06561, "epss_percentile": 0.93622, "exploited": true, "kev": { "added": "2026-08-04", "due": "2026-08-07", "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.", "ransomware": "Unknown", "name": "Apache Tomcat Missing Encryption of Sensitive Data Vulnerability", "notes": "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" }, "ssvc_exploitation": "active", "vendors": [ "Apache Software Foundation", "Red Hat" ], "products": [ "Apache Software Foundation Apache Tomcat", "Red Hat Enterprise Linux 10", "Red Hat Enterprise Linux 10.0 Extended Update Support", "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "Red Hat Enterprise Linux 8", "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "Red Hat Enterprise Linux 9", "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions", "Red Hat Enterprise Linux 9.6 Extended Update Support", "Red Hat JBoss Web Server 7.0.0", "Red Hat JBoss Web Server 7.0 on RHEL 10", "Red Hat JBoss Web Server 7.0 on RHEL 8", "Red Hat JBoss Web Server 7.0 on RHEL 9", "Red Hat Enterprise Linux 6", "Red Hat JBoss Web Server 5", "Red Hat JBoss Web Server 6" ], "cwes": [ "CWE-311", "CWE-807" ], "description": "Missing Encryption of Sensitive Data vulnerability in Apache Tomcat due to the fix for CVE-2026-29146 allowing the bypass of the EncryptInterceptor. This issue affects Apache Tomcat: 11.0.20, 10.1.53, 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.", "status": "Analyzed", "score_type": "Secondary", "scores": { "cvss_v40": null, "cvss_v31": 7.5, "cvss_v30": null }, "references": [ { "url": "https://lists.apache.org/thread/9510k5p5zdvt9pkkgtyp85mvwxo2qrly", "tags": [ "Mailing List", "Vendor Advisory" ] }, { "url": "https://www.vicarius.io/vsociety/posts/cve-2026-34486-detection-script-rce-on-apache-tomcat", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.vicarius.io/vsociety/posts/cve-2026-34486-mitigation-script-rce-on-apache-tomcat", "tags": [ "Mitigation", "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36787", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36788", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36789", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36790", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36876", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36877", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36878", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:36879", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:37136", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:37137", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:38505", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:39188", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:39189", "tags": [ "Third Party Advisory" ] }, { "url": "https://access.redhat.com/security/cve/CVE-2026-34486", "tags": [ "Third Party Advisory" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457027", "tags": [ "Issue Tracking", "Third Party Advisory" ] }, { "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34486.json", "tags": [ "Third Party Advisory" ] }, { "url": "https://socradar.io/blog/snowlight-government-chinese-campaign/", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34486", "tags": [ "US Government Resource" ] } ], "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34486", "covered_in": [], "attribution": [ { "source": "NVD", "url": "https://nvd.nist.gov", "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD." }, { "source": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "notice": "Known exploited vulnerabilities from the CISA KEV catalog." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss", "notice": "Exploit prediction scores from FIRST EPSS." } ] }