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CVE-2026-55957

Medium priority
Needs evaluation

Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password. This issue...

6 affected packages

tomcat6, tomcat7, tomcat8, tomcat9, tomcat10, tomcat11

Package 16.04 LTS
tomcat6
tomcat7
tomcat8 Needs evaluation
tomcat9
tomcat10
tomcat11
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CVE-2026-55956

Medium priority
Needs evaluation

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint. This issue affects Apache Tomcat:...

6 affected packages

tomcat6, tomcat7, tomcat8, tomcat9, tomcat10, tomcat11

Package 16.04 LTS
tomcat6
tomcat7
tomcat8 Needs evaluation
tomcat9
tomcat10
tomcat11
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CVE-2026-55955

Medium priority
Needs evaluation

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through...

6 affected packages

tomcat6, tomcat7, tomcat8, tomcat9, tomcat10, tomcat11

Package 16.04 LTS
tomcat6
tomcat7
tomcat8 Needs evaluation
tomcat9
tomcat10
tomcat11
Show less packages

CVE-2026-55276

Medium priority
Needs evaluation

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged. This issue affects Apache Tomcat:...

6 affected packages

tomcat6, tomcat7, tomcat8, tomcat9, tomcat10, tomcat11

Package 16.04 LTS
tomcat6
tomcat7
tomcat8 Needs evaluation
tomcat9
tomcat10
tomcat11
Show less packages

CVE-2026-54371

Medium priority
Needs evaluation

attr before version 2.6.0 contains a symlink traversal vulnerability in the getfattr and setfattr utilities that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link during directory...

1 affected package

attr

Package 16.04 LTS
attr Needs evaluation
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CVE-2026-54370

Medium priority
Needs evaluation

acl before version 2.4.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat()...

1 affected package

acl

Package 16.04 LTS
acl Needs evaluation
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CVE-2026-54369

Medium priority
Needs evaluation

acl before version 2.4.0 contains a symlink traversal vulnerability in the libacl pathname-based functions acl_get_file(), acl_set_file(), acl_extended_file(), and acl_delete_def_file() that allows local attackers to escalate...

1 affected package

acl

Package 16.04 LTS
acl Needs evaluation
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CVE-2026-53434

Medium priority
Needs evaluation

Detection of Error Condition Without Action vulnerability in Apache Tomcat when configuring CRLs for a FFM based connector. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M7 through 10.1.55, from...

6 affected packages

tomcat6, tomcat7, tomcat8, tomcat9, tomcat10, tomcat11

Package 16.04 LTS
tomcat6
tomcat7
tomcat8 Needs evaluation
tomcat9
tomcat10
tomcat11
Show less packages

CVE-2026-53404

Medium priority
Needs evaluation

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped. This issue affects Apache Tomcat:...

6 affected packages

tomcat6, tomcat7, tomcat8, tomcat9, tomcat10, tomcat11

Package 16.04 LTS
tomcat6
tomcat7
tomcat8 Needs evaluation
tomcat9
tomcat10
tomcat11
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CVE-2026-50229

Medium priority
Needs evaluation

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in the number guess example for Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through...

6 affected packages

tomcat6, tomcat7, tomcat8, tomcat9, tomcat10, tomcat11

Package 16.04 LTS
tomcat6
tomcat7
tomcat8 Needs evaluation
tomcat9
tomcat10
tomcat11
Show less packages