01 Record

CVE-2026-34486

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

HighKEVPUBLISHEDCNA: apache

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

View raw JSON

02 Description

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

03 Exploitation and scoring

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2026-08-04. Federal remediation due 2026-08-07.

SSVC decision

ExploitationactiveCISA reports credible evidence of active exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

98.50% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 99.9% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-26.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-04-09 19:35Z6 MO AGO

Last updated

2026-09-21 19:43Z1 MO AGO

Reserved

2026-03-30

Assigning CNA

apache

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses

CWE-311Missing Encryption of Sensitive DataClass
CWE-807Reliance on Untrusted Inputs in a Security DecisionBase

Data version

5.2

Document digest

d20086c3b67e48bf7ded0591db1f678720ef9220d4a92c771630ff985eede289

05 Affected products

VendorProductVersionsPlatforms

Apache Software FoundationApache Tomcat11.0.20, 10.1.53, 9.0.116—

06 References

lists.apache.orghttps://lists.apache.org/thread/9510k5p5zdvt9pkkgtyp85mvwxo2qrlyvendor-advisory
socradar.iohttps://socradar.io/blog/snowlight-government-chinese-campaign/third-party-advisory
www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34486government-resource
www.vicarius.iohttps://www.vicarius.io/vsociety/posts/cve-2026-34486-detection-script-rce-on-apache-tomcat
www.vicarius.iohttps://www.vicarius.io/vsociety/posts/cve-2026-34486-mitigation-script-rce-on-apache-tomcat
access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-34486vdb-entryx_refsource_REDHAT
bugzilla.redhat.comRHBZ#2457027https://bugzilla.redhat.com/show_bug.cgi?id=2457027issue-trackingx_refsource_REDHAT
security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34486.jsonx_sadp-csaf-vex
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:39188vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:38505vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36787vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36789vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36788vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36790vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:37137vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:37136vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36878vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36876vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36877vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36879vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:39189vendor-advisoryx_refsource_REDHAT

07 Fixed in

AlmaLinux 8

tomcat
Fixed in 1:9.0.87-2.el8_10
tomcat-admin-webapps
Fixed in 1:9.0.87-2.el8_10
tomcat-docs-webapp
Fixed in 1:9.0.87-2.el8_10
tomcat-el-3.0-api
Fixed in 1:9.0.87-2.el8_10
tomcat-jsp-2.3-api
Fixed in 1:9.0.87-2.el8_10
tomcat-lib
Fixed in 1:9.0.87-2.el8_10
tomcat-servlet-4.0-api
Fixed in 1:9.0.87-2.el8_10
tomcat-webapps
Fixed in 1:9.0.87-2.el8_10

AlmaLinux 9

tomcat
Fixed in 1:9.0.117-2.el9_8
tomcat-admin-webapps
Fixed in 1:9.0.117-2.el9_8
tomcat-docs-webapp
Fixed in 1:9.0.117-2.el9_8
tomcat-el-3.0-api
Fixed in 1:9.0.117-2.el9_8
tomcat-jsp-2.3-api
Fixed in 1:9.0.117-2.el9_8
tomcat-lib
Fixed in 1:9.0.117-2.el9_8
tomcat-servlet-4.0-api
Fixed in 1:9.0.117-2.el9_8
tomcat-webapps
Fixed in 1:9.0.117-2.el9_8

AlmaLinux 10

tomcat
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-admin-webapps
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-docs-webapp
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-el-5.0-api
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-jsp-3.1-api
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-lib
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-servlet-6.0-api
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-webapps
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat9
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-admin-webapps
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-docs-webapp
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-el-3.0-api
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-jsp-2.3-api
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-lib
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-servlet-4.0-api
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-webapps
Fixed in 1:9.0.117-2.el10_2.alma.1

CloudLinux 8

tomcat
Fixed in 1:9.0.87-2.el8_10
tomcat-admin-webapps
Fixed in 1:9.0.87-2.el8_10
tomcat-docs-webapp
Fixed in 1:9.0.87-2.el8_10
tomcat-el-3.0-api
Fixed in 1:9.0.87-2.el8_10
tomcat-jsp-2.3-api
Fixed in 1:9.0.87-2.el8_10
tomcat-lib
Fixed in 1:9.0.87-2.el8_10
tomcat-servlet-4.0-api
Fixed in 1:9.0.87-2.el8_10
tomcat-webapps
Fixed in 1:9.0.87-2.el8_10

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

CloudLinux 9

tomcat
Fixed in 1:9.0.117-2.el9_8
tomcat-admin-webapps
Fixed in 1:9.0.117-2.el9_8
tomcat-docs-webapp
Fixed in 1:9.0.117-2.el9_8
tomcat-el-3.0-api
Fixed in 1:9.0.117-2.el9_8
tomcat-jsp-2.3-api
Fixed in 1:9.0.117-2.el9_8
tomcat-lib
Fixed in 1:9.0.117-2.el9_8
tomcat-servlet-4.0-api
Fixed in 1:9.0.117-2.el9_8
tomcat-webapps
Fixed in 1:9.0.117-2.el9_8

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

CloudLinux 10

tomcat
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-admin-webapps
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-docs-webapp
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-el-5.0-api
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-jsp-3.1-api
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-lib
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-servlet-6.0-api
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat-webapps
Fixed in 1:10.1.49-3.el10_2.alma.1
tomcat9
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-admin-webapps
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-docs-webapp
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-el-3.0-api
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-jsp-2.3-api
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-lib
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-servlet-4.0-api
Fixed in 1:9.0.117-2.el10_2.alma.1
tomcat9-webapps
Fixed in 1:9.0.117-2.el10_2.alma.1

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Ubuntu Pro 18.04 LTS

tomcat8
No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.