Critical severity9.1NVD Advisory· Published Aug 25, 2026· Updated Aug 27, 2026
CVE-2026-68525
CVE-2026-68525
Description
Incorrect Authorization vulnerability in Apache Tomcat's FORM authentication process allows the bypassing of a security constraint that limits user has access to a resource POST but not GET.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120.
The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fixes 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:tomcatMaven | >= 11.0.0-M1, < 11.0.25 | 11.0.25 |
org.apache.tomcat:tomcatMaven | >= 10.1.0-M1, < 10.1.58 | 10.1.58 |
org.apache.tomcat:tomcatMaven | >= 9.0.0-M1, < 9.0.121 | 9.0.121 |
org.apache.tomcat:tomcatMaven | >= 8.5.0, <= 8.5.100 | — |
org.apache.tomcat:tomcatMaven | >= 7.0.0, <= 7.0.109 | — |
org.apache.tomcat:tomcat-catalinaMaven | >= 11.0.0-M1, < 11.0.25 | 11.0.25 |
org.apache.tomcat:tomcat-catalinaMaven | >= 10.1.0-M1, < 10.1.58 | 10.1.58 |
org.apache.tomcat:tomcat-catalinaMaven | >= 9.0.0-M1, < 9.0.121 | 9.0.121 |
org.apache.tomcat:tomcat-catalinaMaven | >= 8.5.0, <= 8.5.100 | — |
org.apache.tomcat:tomcat-catalinaMaven | >= 7.0.0, <= 7.0.109 | — |
org.apache.tomcat.embed:tomcat-embed-coreMaven | >= 11.0.0-M1, < 11.0.25 | 11.0.25 |
org.apache.tomcat.embed:tomcat-embed-coreMaven | >= 10.1.0-M1, < 10.1.58 | 10.1.58 |
org.apache.tomcat.embed:tomcat-embed-coreMaven | >= 9.0.0-M1, < 9.0.121 | 9.0.121 |
org.apache.tomcat.embed:tomcat-embed-coreMaven | >= 8.5.0, <= 8.5.100 | — |
org.apache.tomcat.embed:tomcat-embed-coreMaven | >= 7.0.0, <= 7.0.109 | — |
Affected products
37- osv-coords36 versionspkg:rpm/opensuse/tomcat10&distro=openSUSE%20Tumbleweedpkg:apk/chainguard/camunda-zeebe-8.9pkg:apk/chainguard/kayenta-2025.2pkg:apk/chainguard/kayenta-2025.4pkg:apk/chainguard/kayenta-2026.0pkg:apk/chainguard/kayenta-fips-2025.2pkg:apk/chainguard/kayenta-fips-2026.0pkg:apk/chainguard/nacos-dockerpkg:apk/chainguard/thingsboard-tb-mqtt-transportpkg:apk/chainguard/kayenta-fips-2026.2pkg:bitnami/tomcatpkg:maven/org.apache.tomcat/tomcatpkg:maven/org.apache.tomcat/tomcat-catalinapkg:maven/org.apache.tomcat.embed/tomcat-embed-corepkg:apk/chainguard/camunda-zeebe-8.8pkg:apk/wolfi/thingsboard-tb-mqtt-transportpkg:apk/wolfi/thingsboard-tb-nodepkg:rpm/opensuse/tomcat&distro=openSUSE%20Leap%2016.0pkg:apk/chainguard/kayenta-2026.2pkg:apk/chainguard/kayenta-2026.1pkg:apk/chainguard/camunda-zeebe-8.7pkg:apk/chainguard/conductorpkg:apk/chainguard/ontop-fipspkg:apk/chainguard/kayenta-fips-2025.4pkg:apk/chainguard/nacospkg:rpm/opensuse/tomcat10&distro=openSUSE%20Leap%2016.0pkg:apk/chainguard/conductor-fipspkg:apk/chainguard/kayenta-fips-2026.1pkg:apk/chainguard/thingsboard-tb-nodepkg:apk/chainguard/camunda-8.8pkg:apk/chainguard/camunda-8.9pkg:apk/chainguard/camunda-zeebe-8.6pkg:apk/chainguard/ontoppkg:rpm/opensuse/tomcat&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/tomcat11&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/tomcat11&distro=openSUSE%20Leap%2016.0
< 10.1.59-1.1+ 35 more
- (no CPE)range: < 10.1.59-1.1
- (no CPE)range: < 8.9.18-r1
- (no CPE)range: < 2025.2.4-r9
- (no CPE)range: < 2025.4.6-r14
- (no CPE)range: < 2026.0.7-r4
- (no CPE)range: < 2025.2.4-r9
- (no CPE)range: < 2026.0.5-r3
- (no CPE)range: < 3.2.4-r1
- (no CPE)range: < 4.3.1.4-r2
- (no CPE)range: < 2026.2.5-r2
- (no CPE)range: < 9.0.121
- (no CPE)range: >= 11.0.0-M1, < 11.0.25
- (no CPE)range: >= 11.0.0-M1, < 11.0.25
- (no CPE)range: >= 11.0.0-M1, < 11.0.25
- (no CPE)range: < 8.8.37-r1
- (no CPE)range: < 4.3.1.4-r2
- (no CPE)range: < 4.3.1.4-r2
- (no CPE)range: < 9.0.121-160000.1.1
- (no CPE)range: < 2026.2.5-r1
- (no CPE)range: < 2026.1.2-r5
- (no CPE)range: < 8.7.38-r1
- (no CPE)range: < 3.32.1-r7
- (no CPE)range: < 5.5.0-r17
- (no CPE)range: < 2025.4.6-r8
- (no CPE)range: < 3.2.4-r1
- (no CPE)range: < 10.1.59-160000.1.1
- (no CPE)range: < 3.32.1-r5
- (no CPE)range: < 2026.1.2-r5
- (no CPE)range: < 4.3.1.4-r2
- (no CPE)range: < 8.8.37-r1
- (no CPE)range: < 8.9.18-r1
- (no CPE)range: < 8.6.39-r12
- (no CPE)range: < 5.5.0-r23
- (no CPE)range: < 9.0.121-1.1
- (no CPE)range: < 11.0.25-1.1
- (no CPE)range: < 11.0.25-160000.1.1
Patches
Vulnerability mechanics
References
10- www.openwall.com/lists/oss-security/2026/08/26/7nvdThird Party AdvisoryMailing ListWEB
- github.com/advisories/GHSA-h3x4-894j-xpx5ghsaADVISORY
- lists.apache.org/thread/x1y2lfsgzxwzc456f8954vbvgn03zhd7nvdVendor AdvisoryMailing ListWEB
- nvd.nist.gov/vuln/detail/CVE-2026-68525ghsaADVISORY
- github.com/apache/tomcat/commit/10d048e16034ddf12055e0cede0da05b15c823b8ghsaWEB
- github.com/apache/tomcat/commit/32f0c38526b4e655ff0c17cd97afedefc624fe43ghsaWEB
- github.com/apache/tomcat/commit/58123aa468a20e2a079b7e0c68a4009e2475c098ghsaWEB
- tomcat.apache.org/security-10.htmlghsaWEB
- tomcat.apache.org/security-11.htmlghsaWEB
- tomcat.apache.org/security-9.htmlghsaWEB
News mentions
2- Apache Tomcat Vulnerabilities Let Attackers Bypass Security Controls and Crash ServersCyber Security News · Aug 27, 2026
- Apache: 25 Vulnerabilities Across Tomcat, Camel, Hive, and More Disclosed Aug 24-26Vypr Intelligence · Aug 26, 2026