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Low

Apache Tomcat Vulnerable to Improper Neutralization of Escape, Meta, or Control Sequences

  • Disclosed: 27.10.2025
  • Updated: 11.10.2026 13:20

Tomcat did not escape ANSI escape sequences in log messages. If Tomcat was running in a console on a Windows operating system, and the console supported ANSI escape sequences, it was possible for an attacker to use a specially crafted URL to inject ANSI escape sequences to manipulate the console and the clipboard and attempt to trick an administrator into running an attacker controlled command. While no attack vector was found, it may have been possible to mount this attack on other operating systems.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.10, from 10.1.0-M1 through 10.1.44, from 9.0.40 through 9.0.108.

The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.60 though 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.11 or later, 10.1.45 or later or 9.0.109 or later, which fix the issue.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.apache.tomcat.embed:tomcat-embed-core >= 11.0.0-M1, < 11.0.11, >= 10.1.0-M1, < 10.1.45, >= 9.0.40, < 9.0.109, >= 8.5.60, <= 8.5.100 11.0.11, 10.1.45, 9.0.109
Java / Kotlin (Maven) org.apache.tomcat:tomcat >= 11.0.0-M1, < 11.0.11, >= 10.1.0-M1, < 10.1.45, >= 9.0.40, < 9.0.109, >= 8.5.60, <= 8.5.100 11.0.11, 10.1.45, 9.0.109
Java / Kotlin (Maven) org.apache.tomcat:tomcat-catalina >= 11.0.0-M1, < 11.0.11, >= 10.1.0-M1, < 10.1.45, >= 9.0.40, < 9.0.109, >= 8.5.60, <= 8.5.100 11.0.11, 10.1.45, 9.0.109

References

CVSS score 9.6/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-150
Platform
Java / Kotlin (Maven)
Package
org.apache.tomcat.embed:tomcat-embed-core, org.apache.tomcat:tomcat, org.apache.tomcat:tomcat-catalina
Disclosed
27.10.2025
Updated
11.10.2026 13:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-vfww-5hm6-hx2j - CC BY 4.0

Vulnerability history: org.apache.tomcat.embed:tomcat-embed-core

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (77) in the archive
Total entries
77
First → latest
10.2018 08.2026
Without a fix
0
Exploited in attacks
5

Severity breakdown

  • Critical 11
  • High 36
  • Medium 25
  • Low 5

Disclosures per year

Severity:
  1. Apache Tomcat's DIGEST authenticator has an Authentication Bypass by Capture-replay vulnerability
    Critical · 9.8 CVE-2026-65905 >= 11.0.0-M1, < 11.0.25, >= 10.1.0-M1, < 10.1.58, >= 9.0.0.M1, < 9.0.121, >= 8.5.0, <= 8.5.100, >= 7.0.30, <= 7.0.109 11.0.25, 10.1.58, 9.0.121
  2. Apache Tomcat has an Improper Access Control, Incorrect Authorization vulnerability
    Critical · 9.1 CVE-2026-65182 >= 11.0.0-M1, < 11.0.25, >= 10.1.0-M1, < 10.1.58, >= 9.0.0-M1, < 9.0.121, >= 8.5.0, <= 8.5.100, >= 7.0.0, <= 7.0.109 11.0.25, 10.1.58, 9.0.121
  3. Apache Tomcat's FORM authentication process has an Incorrect Authorization vulnerability
    Critical · 9.1 CVE-2026-68525 >= 11.0.0-M1, < 11.0.25, >= 10.1.0-M1, < 10.1.58, >= 9.0.0-M1, < 9.0.121, >= 8.5.0, <= 8.5.100, >= 7.0.0, <= 7.0.109 11.0.25, 10.1.58, 9.0.121
  4. Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling
    High · 7.5 CVE-2026-41284 < 9.0.118, >= 10.1.0-M1, < 10.1.55, >= 11.0.0-M1, < 11.0.22 9.0.118, 10.1.55, 11.0.22
  5. Apache Tomcat - Digest authenticator will authenticate any unknown user
    Critical · 9.8 CVE-2026-43512 < 9.0.118, >= 10.1.0-M1, < 10.1.55, >= 11.0.0-M1, < 11.0.22 9.0.118, 10.1.55, 11.0.22
  6. Apache Tomcat: LockOutRealm treats user names as case-sensitive
    High · 7.5 CVE-2026-43513 < 9.0.118, >= 10.1.0-M1, < 10.1.55, >= 11.0.0-M1, < 11.0.22 9.0.118, 10.1.55, 11.0.22
  7. Apache Tomcat - Security constraints not correctly applied
    Critical · 9.1 CVE-2026-43515 < 9.0.118, >= 10.1.0-M1, < 10.1.55, >= 11.0.0-M1, < 11.0.22 9.0.118, 10.1.55, 11.0.22
  8. Apache Tomcat - WebSocket authentication header exposure
    High · 7.3 CVE-2026-42498 < 9.0.118, >= 10.1.0-M1, < 10.1.55, >= 11.0.0-M1, < 11.0.22 9.0.118, 10.1.55, 11.0.22
  9. Apache Tomcat - HTTP/2 request headers not validated
    Critical · 9.8 CVE-2026-41293 >= 8.5.0, < 9.0.118, >= 10.1.0-M1, < 10.1.55, >= 11.0.0-M1, < 11.0.22 9.0.118, 10.1.55, 11.0.22
  10. Apache Tomcat vulnerable to Insertion of Sensitive Information into Log File
    High · 7.5 CVE-2026-34487 >= 9.0.13, < 9.0.117, >= 10.1.0-M1, < 10.1.54, >= 11.0.0-M1, < 11.0.21 9.0.117, 10.1.54, 11.0.21
  11. Apache Tomcat has an Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve
    High · 7.5 CVE-2026-34483 >= 9.0.40, < 9.0.116, >= 10.1.0-M1, < 10.1.54, >= 11.0.0-M1, < 11.0.21 9.0.116, 10.1.54, 11.0.21
  12. Apache Tomcat has an HTTP Request/Response Smuggling vulnerability
    High · 7.5 CVE-2026-24880 >= 7.0.0, < 9.0.116, >= 10.1.0-M1, < 10.1.52, >= 11.0.0-M1, < 11.0.20 9.0.116, 10.1.52, 11.0.20
  13. Apache Tomcat: Configured cipher preference order not preserved
    High · 7.5 CVE-2026-29129 >= 9.0.114, < 9.0.116, >= 10.1.51, < 10.1.53, >= 11.0.16, < 11.0.20 9.0.116, 10.1.53, 11.0.20
  14. Apache Tomcat has an Improper Input Validation vulnerability
    High · 7.5 CVE-2026-24734 >= 11.0.0-M1, < 11.0.18, >= 10.1.0-M7, < 10.1.52, >= 9.0.83, < 9.0.115 11.0.18, 10.1.52, 9.0.115
  15. Apache Tomcat Vulnerable to Improper Neutralization of Escape, Meta, or Control Sequences this entry
    Low · 9.6 CVE-2025-55754 >= 11.0.0-M1, < 11.0.11, >= 10.1.0-M1, < 10.1.45, >= 9.0.40, < 9.0.109, >= 8.5.60, <= 8.5.100 11.0.11, 10.1.45, 9.0.109
  16. Apache Tomcat Vulnerable to Relative Path Traversal
    High · 7.5 CVE-2025-55752 >= 11.0.0-M1, < 11.0.11, >= 10.1.0-M1, < 10.1.45, >= 9.0.0-M11, < 9.0.109, >= 8.5.6, <= 8.5.100 11.0.11, 10.1.45, 9.0.109
  17. Apache Tomcat Improper Resource Shutdown or Release vulnerability
    High · 7.5 CVE-2025-48989 >= 11.0.0-M1, < 11.0.10, >= 10.1.0-M1, < 10.1.44, >= 9.0.0.M1, < 9.0.108 11.0.10, 10.1.44, 9.0.108
  18. Apache Tomcat Coyote vulnerable to Denial of Service via excessive HTTP/2 streams
    High · 7.5 CVE-2025-53506 >= 8.5.0, <= 8.5.100, >= 9.0.0.M1, < 9.0.107, >= 10.1.0-M1, < 10.1.43, >= 11.0.0-M1, < 11.0.9 9.0.107, 10.1.43, 11.0.9
  19. Apache Tomcat Catalina is vulnerable to DoS attack through bypassing of size limits
    High · 7.5 CVE-2025-52520 >= 11.0.0-M1, < 11.0.9, >= 10.1.0-M1, < 10.1.43, >= 9.0.0.M1, < 9.0.107, >= 8.5.0, <= 8.5.100 11.0.9, 10.1.43, 9.0.107
  20. Apache Tomcat - DoS in multipart upload
    High · 7.5 CVE-2025-48988 >= 11.0.0-M1, < 11.0.8, >= 10.1.0-M1, < 10.1.42, >= 9.0.0.M1, < 9.0.106, >= 8.5.0, <= 8.5.100 11.0.8, 10.1.42, 9.0.106
  21. Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT
    Critical · 9.8 Exploited in attacks CVE-2025-24813 >= 11.0.0-M1, < 11.0.3, >= 10.1.0-M1, < 10.1.35, >= 9.0.0.M1, < 9.0.99, >= 8.5.0, <= 8.5.100 11.0.3, 10.1.35, 9.0.99
  22. Apache Tomcat Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability
    High CVE-2024-56337 >= 11.0.0-M1, < 11.0.2, >= 10.1.0-M1, < 10.1.34, >= 9.0.0.M1, < 9.0.98 11.0.2, 10.1.34, 9.0.98
  23. Apache Tomcat Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability
    High · 9.8 CVE-2024-50379 >= 11.0.0-M1, < 11.0.2, >= 10.1.0-M1, < 10.1.34, >= 9.0.0.M1, < 9.0.98, >= 8.5.0, <= 8.5.100 11.0.2, 10.1.34, 9.0.98
  24. Apache Tomcat Allocation of Resources Without Limits or Throttling vulnerability
    High · 8.6 CVE-2024-38286 >= 11.0.0-M1, < 11.0.0-M21, >= 10.1.0-M1, < 10.1.25, >= 9.0.13, < 9.0.90, >= 8.5.35, <= 8.5.100, >= 7.0.92, <= 7.0.109 11.0.0-M21, 10.1.25, 9.0.90
  25. Apache Tomcat - Denial of Service
    High · 7.5 CVE-2024-34750 >= 11.0.0-M1, < 11.0.0-M21, >= 10.1.0-M1, < 10.1.25, >= 9.0.0-M1, < 9.0.90, >= 8.5.0, <= 8.5.100 11.0.0-M21, 10.1.25, 9.0.90
  26. Apache Tomcat Improper Input Validation vulnerability
    High · 7.5 CVE-2023-46589 >= 11.0.0-M1, < 11.0.0-M11, >= 10.1.0-M1, < 10.1.16, >= 9.0.0-M1, < 9.0.83, >= 8.5.0, < 8.5.96 11.0.0-M11, 10.1.16, 9.0.83, 8.5.96
  27. Apache Tomcat - Fix for CVE-2023-24998 was incomplete
    High · 7.5 CVE-2023-28709 >= 11.0.0-M2, < 11.0.0-M5, >= 10.1.5, < 10.1.8, >= 9.0.71, < 9.0.74 11.0.0-M5, 10.1.8, 9.0.74
  28. Apache Tomcat vulnerable to information leak
    High · 7.5 CVE-2023-34981 >= 11.0.0-M5, < 11.0.0-M6, >= 10.1.8, < 10.1.9, >= 9.0.74, < 9.0.75 11.0.0-M6, 10.1.9, 9.0.75
  29. Apache Commons FileUpload denial of service vulnerability
    High · 7.5 CVE-2023-24998 >= 10.1.0-M1, < 10.1.5, >= 11.0.0-M2, < 11.0.0-M5, >= 8.5.85, < 8.5.88, >= 9.0.0-M1, < 9.0.71 10.1.5, 11.0.0-M5, 8.5.88, 9.0.71
  30. Apache Tomcat improperly escapes input from JsonErrorReportValve
    High · 7.5 CVE-2022-45143 >= 8.5.83, < 8.5.84, >= 9.0.40, < 9.0.69, >= 10.1.0, < 10.1.2 8.5.84, 9.0.69, 10.1.2
  31. Apache Tomcat may reject request containing invalid Content-Length header
    High · 7.5 CVE-2022-42252 >= 8.5.0, < 8.5.83, >= 9.0.0-M1, < 9.0.68, >= 10.0.0-M1, < 10.0.27, >= 10.1.0-M1, < 10.1.1 8.5.83, 9.0.68, 10.0.27, 10.1.1
  32. Unrestricted Upload of File with Dangerous Type Apache Tomcat
    High · 8.1 Exploited in attacks CVE-2017-12617 >= 9.0.0.M1, < 9.0.1, >= 8.5.0, < 8.5.23, >= 8.0.0-RC1, < 8.0.47, >= 7.0.0, < 7.0.82 9.0.1, 8.5.23, 8.0.47, 7.0.82
  33. Expected Behavior Violation in Apache Tomcat
    Critical · 9.8 CVE-2017-5651 >= 9.0.0.M1, < 9.0.0.M19, >= 8.5.0, < 8.5.13 9.0.0.M19, 8.5.13
  34. Exposure of Resource to Wrong Sphere in Apache Tomcat
    Critical · 9.1 CVE-2017-5648 >= 9.0.0.M1, < 9.0.0.M18, >= 8.5.0, < 8.5.13, >= 8.0.0, < 8.0.42, >= 7.0.0, < 7.0.76 9.0.0.M18, 8.5.13, 8.0.42, 7.0.76
  35. Uncontrolled Resource Consumption in Apache Tomcat
    High · 7.5 CVE-2020-11996 >= 10.0.0-M1, < 10.0.0-M5, >= 9.0.0.M1, < 9.0.35, >= 8.5.0, < 8.5.55 10.0.0-M5, 9.0.35, 8.5.55
  36. Exposure of Sensitive Information to an Unauthorized Actor in Apache Tomcat
    High · 7.5 CVE-2021-25122 >= 10.0.0-M1, < 10.0.2, >= 9.0.0-M1, < 9.0.43, >= 8.5.0, < 8.5.63 10.0.2, 9.0.43, 8.5.63
  37. Potential remote code execution in Apache Tomcat
    High · 7.0 CVE-2021-25329 >= 10.0.0-M1, < 10.0.2, >= 9.0.0, < 9.0.41, >= 8.0.0, < 8.5.61, >= 7.0.0, < 7.0.108 10.0.2, 9.0.41, 8.5.61, 7.0.108
  38. Improper Privilege Management in Tomcat
    Critical · 9.8 Exploited in attacks CVE-2020-1938 >= 9.0.0, < 9.0.31, >= 8.0.0, < 8.5.51, >= 7.0.0, < 7.0.100 9.0.31, 8.5.51, 7.0.100
  39. Apache Tomcat Denial of Service vulnerability
    High · 7.5 CVE-2019-0199 >= 9.0.0, < 9.0.16, >= 8.0.0, < 8.5.38 9.0.16, 8.5.38
  40. Potential remote code execution in Apache Tomcat
    High · 7.0 CVE-2020-9484 >= 10.0.0-M1, < 10.0.0-M5, >= 9.0.0, < 9.0.35, >= 8.0.0, < 8.5.55, >= 7.0.0, < 7.0.104 10.0.0-M5, 9.0.35, 8.5.55, 7.0.104
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