CVE-2026-34486 | Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor

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.

Published: 2026-04-09 Last update: 2026-05-26 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-34486 is rated Moderate Risk (60.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.22%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-34486

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-03 1.68% 2.22% +0.54%
2 2026-05-27 1.65% 1.68% +0.03%
3 2026-05-22 — 1.65% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-34486

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-34486

GitHub Security Advisory for CVE-2026-34486

GHSA-69r9-qgr7-g2wj · Severity: high · Ecosystem: maven — Apache Tomcat Missing Encryption of Sensitive Data vulnerability

OS Trackers for CVE-2026-34486

vendor priority summary link
debian unimportant CVE-2026-34486 unimportant priority: Debian including 3 source packages (tomcat10, tomcat11, tomcat9), 12 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 12. https://security-tracker.debian.org/tracker/CVE-2026-34486
redhat high — https://access.redhat.com/security/cve/CVE-2026-34486
suse high CVE-2026-34486 severity important: SUSE including 34 source package names (tomcat, tomcat-9.0.117-1.1, …), 34 product×package rows across 2 product lines (SUSE Linux Enterprise Server Teradata 12 SP3, openSUSE Tumbleweed): Fixed 33, Known Not Affected 1. https://www.suse.com/security/cve/CVE-2026-34486/
ubuntu medium CVE-2026-34486 medium priority: Ubuntu including 6 source packages (tomcat10, tomcat11, tomcat6, tomcat7, tomcat8, tomcat9), 33 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): needs-triage 18, DNE 12, ignored 3. https://ubuntu.com/security/CVE-2026-34486

Affected software / configurations for CVE-2026-34486

Vendor Product Version Raw CPE
apache tomcat 9.0.116 cpe:2.3:a:apache:tomcat:9.0.116:*:*:*:*:*:*:*
apache tomcat 10.1.53 cpe:2.3:a:apache:tomcat:10.1.53:*:*:*:*:*:*:*
apache tomcat 11.0.20 cpe:2.3:a:apache:tomcat:11.0.20:*:*:*:*:*:*:*

References for CVE-2026-34486

cvelogic Threat Intelligence