synced 12 MIN AGO
01 Record

CVE-2026-43514

Apache Tomcat: AJP secret compared in non-constant time

LowPUBLISHEDCNA: apache
CNA base score3.7 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
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02 Description

Apache Tomcat: AJP secret compared in non-constant time

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • 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
0.35% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 28.5% of scored records. A rank, not a probability.
NVD base score
3.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-26.
Red Hat severity
Low. 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
2026-05-12 15:32Z5 MO AGO
Last updated
2026-05-13 17:22Z5 MO AGO
Reserved
2026-05-01
Assigning CNA
apache
Record state
PUBLISHED
Severity
Low (CVSS 3.7)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
  • CWE-208Observable Timing DiscrepancyBase
Data version
5.2
Document digest
db2ed9a283ff95318eb3263ffef16bb6bf58496664a6f07d22cba7e80d4283f1

05 Affected products

VendorProductVersionsPlatforms
Apache Software FoundationApache Tomcat11.0.0-M1 to 11.0.21, 10.1.0-M1 to 10.1.54, 9.0.0.M1 to 9.0.117, 8.5.0 to 8.5.100, 7.0.0 to 7.0.109—

06 References

07 Fixed in

AlmaLinux 8

  • tomcat
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-admin-webapps
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-docs-webapp
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-el-3.0-api
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-jsp-2.3-api
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-lib
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-servlet-4.0-api
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-webapps
    Fixed in 1:9.0.120-1.el8_10

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • tomcat
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-admin-webapps
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-docs-webapp
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-el-3.0-api
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-jsp-2.3-api
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-lib
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-servlet-4.0-api
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-webapps
    Fixed in 1:9.0.120-2.el9_8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • tomcat
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-admin-webapps
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-docs-webapp
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-el-5.0-api
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-jsp-3.1-api
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-lib
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-servlet-6.0-api
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-webapps
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat9
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-admin-webapps
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-docs-webapp
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-el-3.0-api
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-jsp-2.3-api
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-lib
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-servlet-4.0-api
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-webapps
    Fixed in 1:9.0.120-1.el10_2.alma.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • tomcat
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-admin-webapps
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-docs-webapp
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-el-3.0-api
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-jsp-2.3-api
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-lib
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-servlet-4.0-api
    Fixed in 1:9.0.120-1.el8_10
  • tomcat-webapps
    Fixed in 1:9.0.120-1.el8_10

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

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • tomcat
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-admin-webapps
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-docs-webapp
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-el-3.0-api
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-jsp-2.3-api
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-lib
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-servlet-4.0-api
    Fixed in 1:9.0.120-2.el9_8
  • tomcat-webapps
    Fixed in 1:9.0.120-2.el9_8

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

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 10

  • tomcat
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-admin-webapps
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-docs-webapp
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-el-5.0-api
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-jsp-3.1-api
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-lib
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-servlet-6.0-api
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat-webapps
    Fixed in 1:10.1.49-4.el10_2.alma.1
  • tomcat9
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-admin-webapps
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-docs-webapp
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-el-3.0-api
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-jsp-2.3-api
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-lib
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-servlet-4.0-api
    Fixed in 1:9.0.120-1.el10_2.alma.1
  • tomcat9-webapps
    Fixed in 1:9.0.120-1.el10_2.alma.1

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

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • tomcat10
    Fixed in 10.1.55-1~deb12u1
  • tomcat9
    Fixed in 9.0.70-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • tomcat10
    Fixed in 10.1.55-1~deb13u1
  • tomcat11
    Fixed in 11.0.22-1~deb13u1
  • tomcat9
    Fixed in 9.0.70-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • tomcat10
    Fixed in 10.1.55-1
  • tomcat11
    Fixed in 11.0.22-1
  • tomcat9
    Fixed in 9.0.70-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • tomcat10
    No fix yet
  • tomcat9
    No fix yet

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

Ubuntu 25.10

  • tomcat10
    No fix yet
  • tomcat11
    No fix yet
  • tomcat9
    No fix yet

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

Ubuntu 26.04 LTS

  • tomcat10
    No fix yet
  • tomcat11
    No fix yet
  • tomcat9
    No fix yet

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

Ubuntu 26.10

  • tomcat10
    No fix yet

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

Ubuntu Pro 14.04 LTS

  • tomcat6
    No fix yet
  • tomcat7
    No fix yet

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

Ubuntu Pro 16.04 LTS

  • tomcat7
    No fix yet

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

Ubuntu Pro 18.04 LTS

  • tomcat8
    No fix yet
  • tomcat9
    No fix yet

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

Ubuntu Pro 20.04 LTS

  • tomcat9
    No fix yet

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

Ubuntu Pro 22.04 LTS

  • tomcat9
    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.