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🛡️ USN-8551-1 — tomcat8 (CVE-2026-43515 +3 more)

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

tomcat8 vulnerabilities

It was discovered that Tomcat incorrectly handled authorization when

multiple method constraints defined the same HTTP method. A remote

attacker could possibly use this issue to bypass authorization

restrictions. (CVE-2026-43515)

It was discovered that the Tomcat number guess example application did

not properly sanitize user-supplied input. An attacker could possibly

use this issue to inject malicious scripts, resulting in cross-site

scripting. (CVE-2026-50229)

It was discovered that Tomcat incorrectly evaluated rewrite valve

conditions in certain configurations. An attacker could possibly use

this issue to bypass rewrite rules, resulting in unauthorized access.

(CVE-2026-53404)

It was discovered that Tomcat incorrectly omitted certain authorization

information when logging the effective web.xml configuration. An

attacker could possibly use this issue to hide authorization

constraints, resulting in reduced auditability. (CVE-2026-55276)

Affected software

USN-8551-1 is recorded against 1 package.

  • tomcat8 (fixed in 8.5.39-1ubuntu1~18.04.3+esm6)

Timeline and source

Published on 15 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Advisory)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)

Other advisories for this package

tomcat8 has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-07-15
Updated 2026-08-20
Modified 2026-07-15
Fix URL N/A

Affected Packages

Software From version Fixed in
tomcat8 — 8.5.39-1ubuntu1~18.04.3+esm6

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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