Low severity3.7NVD Advisory· Published May 12, 2026· Updated May 14, 2026
CVE-2026-43514
CVE-2026-43514
Description
Observable Timing Discrepancy vulnerability when comparing AJP secret in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Older unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.apache.tomcat.embed:tomcat-embed-coreMaven | < 9.0.118 | 9.0.118 |
org.apache.tomcat.embed:tomcat-embed-coreMaven | >= 10.1.0-M1, < 10.1.55 | 10.1.55 |
org.apache.tomcat.embed:tomcat-embed-coreMaven | >= 11.0.0-M1, < 11.0.22 | 11.0.22 |
org.apache.tomcat:tomcatMaven | < 9.0.118 | 9.0.118 |
org.apache.tomcat:tomcatMaven | >= 10.1.0-M1, < 10.1.55 | 10.1.55 |
org.apache.tomcat:tomcatMaven | >= 11.0.0-M1, < 11.0.22 | 11.0.22 |
org.apache.tomcat:tomcat-catalinaMaven | < 9.0.118 | 9.0.118 |
org.apache.tomcat:tomcat-catalinaMaven | >= 10.1.0-M1, < 10.1.55 | 10.1.55 |
org.apache.tomcat:tomcat-catalinaMaven | >= 11.0.0-M1, < 11.0.22 | 11.0.22 |
Affected products
36- osv-coords36 versionspkg:apk/chainguard/camunda-8.9pkg:apk/chainguard/camunda-zeebe-8.7pkg:apk/chainguard/camunda-zeebe-8.8pkg:apk/chainguard/camunda-zeebe-8.9pkg:apk/chainguard/kayenta-2025.4pkg:apk/chainguard/kayenta-2026.0pkg:apk/chainguard/kayenta-2026.1pkg:apk/chainguard/kayenta-fips-2025.4pkg:apk/chainguard/kayenta-fips-2026.0pkg:apk/chainguard/kayenta-fips-2026.1pkg:apk/chainguard/nacos-dockerpkg:apk/chainguard/ontop-fipspkg:apk/chainguard/thingsboard-tb-mqtt-transportpkg:apk/chainguard/thingsboard-tb-nodepkg:apk/wolfi/thingsboard-tb-mqtt-transportpkg:apk/wolfi/thingsboard-tb-nodepkg:bitnami/tomcatpkg:rpm/opensuse/tomcat10&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/tomcat11&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/tomcat&distro=openSUSE%20Tumbleweedpkg:rpm/suse/tomcat10&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/tomcat10&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/tomcat10&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP7pkg:rpm/suse/tomcat10&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/tomcat10&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/tomcat10&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/tomcat10&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/tomcat10&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/tomcat10&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/tomcat11&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP7pkg:rpm/suse/tomcat11&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/tomcat11&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/tomcat11&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/tomcat11&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/tomcat&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/tomcat&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0
< 8.9.5-r2+ 35 more
- (no CPE)range: < 8.9.5-r2
- (no CPE)range: < 8.7.29-r1
- (no CPE)range: < 8.8.24-r1
- (no CPE)range: < 8.9.5-r2
- (no CPE)range: < 2025.4.3-r8
- (no CPE)range: < 2026.0.2-r8
- (no CPE)range: < 2026.1.0-r1
- (no CPE)range: < 2025.4.3-r9
- (no CPE)range: < 2026.0.2-r9
- (no CPE)range: < 2026.1.0-r1
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 5.5.0-r8
- (no CPE)range: < 4.3.1.2-r0
- (no CPE)range: < 4.3.1.2-r0
- (no CPE)range: < 4.3.1.2-r0
- (no CPE)range: < 4.3.1.2-r0
- (no CPE)range: >= 10.1.0, < 10.1.55
- (no CPE)range: < 10.1.55-1.1
- (no CPE)range: < 11.0.22-1.1
- (no CPE)range: < 9.0.118-1.1
- (no CPE)range: < 10.1.55-150200.5.67.1
- (no CPE)range: < 10.1.55-150200.5.67.1
- (no CPE)range: < 10.1.55-150200.5.67.1
- (no CPE)range: < 10.1.55-150200.5.67.1
- (no CPE)range: < 10.1.55-150200.5.67.1
- (no CPE)range: < 10.1.55-160000.1.1
- (no CPE)range: < 10.1.55-150200.5.67.1
- (no CPE)range: < 10.1.55-150200.5.67.1
- (no CPE)range: < 10.1.55-160000.1.1
- (no CPE)range: < 11.0.22-150600.13.21.1
- (no CPE)range: < 11.0.22-150600.13.21.1
- (no CPE)range: < 11.0.22-160000.1.1
- (no CPE)range: < 11.0.22-150600.13.21.1
- (no CPE)range: < 11.0.22-160000.1.1
- (no CPE)range: < 9.0.118-160000.1.1
- (no CPE)range: < 9.0.118-160000.1.1
Patches
Vulnerability mechanics
References
10- www.openwall.com/lists/oss-security/2026/05/12/10nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-9m89-8frq-c98cghsaADVISORY
- lists.apache.org/thread/2k654v5cq123npfsd1b2kk1y30owqb1mnvdMailing ListVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-43514ghsaADVISORY
- github.com/apache/tomcat/commit/933dcdbf2515972280002929e7e597dead2e9ffaghsaWEB
- github.com/apache/tomcat/commit/a102a2a157868ca51d83eaf5a119ccd9976a113eghsaWEB
- github.com/apache/tomcat/commit/d35d9d23263c8e4af561f615c960c91697ff200eghsaWEB
- tomcat.apache.org/security-10.htmlghsaWEB
- tomcat.apache.org/security-11.htmlghsaWEB
- tomcat.apache.org/security-9.htmlghsaWEB
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