# CVE-2026-34486

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.

- Page: https://www.vulneraibility.com/cve/CVE-2026-34486
- CVSS: 7.5
- Known exploited: yes, in CISA KEV since 2026-08-04; CISA due date 2026-08-07
- EPSS: 98.50%
- Unvetted proof-of-concept code on GitHub: 5 GitHub proofs of concept · 1 Nuclei template (first 2026-04-15)
- CISA SSVC: exploitation active, automatable yes, technical impact partial (assessed 2026-08-07)
- Weakness: CWE-311, CWE-807
- Also known as: GHSA-69r9-qgr7-g2wj
- Published: 2026-04-09

## Affected versions

- Apache Tomcat: affected >= 9.0.116 and < 9.0.117; >= 10.1.53 and < 10.1.54; >= 11.0.20 and < 11.0.21; fixed in 9.0.117, 10.1.54, 11.0.21 (Bitnami advisory, via OSV)
- Apache Software Foundation Apache Tomcat: affected 11.0.20; 10.1.53; 9.0.116

A version outside these ranges is not a statement that it is unaffected.

## References

- [advisory] https://lists.apache.org/thread/9510k5p5zdvt9pkkgtyp85mvwxo2qrly
- [advisory] https://socradar.io/blog/snowlight-government-chinese-campaign/
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34486
- [other] https://www.vicarius.io/vsociety/posts/cve-2026-34486-detection-script-rce-on-apache-tomcat
- [other] https://www.vicarius.io/vsociety/posts/cve-2026-34486-mitigation-script-rce-on-apache-tomcat
- [other] https://access.redhat.com/security/cve/CVE-2026-34486
- [other] https://bugzilla.redhat.com/show_bug.cgi?id=2457027
- [other] https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34486.json
- [advisory] https://access.redhat.com/errata/RHSA-2026:39188
- [advisory] https://access.redhat.com/errata/RHSA-2026:38505
- [advisory] https://access.redhat.com/errata/RHSA-2026:36787
- [advisory] https://access.redhat.com/errata/RHSA-2026:36789
- [advisory] https://access.redhat.com/errata/RHSA-2026:36788
- [advisory] https://access.redhat.com/errata/RHSA-2026:36790
- [advisory] https://access.redhat.com/errata/RHSA-2026:37137
- [advisory] https://access.redhat.com/errata/RHSA-2026:37136
- [advisory] https://access.redhat.com/errata/RHSA-2026:36878
- [advisory] https://access.redhat.com/errata/RHSA-2026:36876
- [advisory] https://access.redhat.com/errata/RHSA-2026:36877
- [advisory] https://access.redhat.com/errata/RHSA-2026:36879
- [advisory] https://access.redhat.com/errata/RHSA-2026:39189

---
Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.