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🛡️ CVE-2025-55752 — tomcat

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-23 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Apache Tomcat: Directory traversal via rewrite with possible RCE if PUT is enabled

Relative Path Traversal vulnerability in Apache Tomcat.

The fix for bug 60013 introduced a regression where the rewritten URL was normalized before it was decoded. This introduced the possibility that, for rewrite rules that rewrite query parameters to the URL, an attacker could manipulate the request URI to bypass security constraints including the protection for /WEB-INF/ and /META-INF/. If PUT requests were also enabled then malicious files could be uploaded leading to remote code execution. PUT requests are normally limited to trusted users and it is considered unlikely that PUT requests would be enabled in conjunction with a rewrite that manipulated the URI.

This issue affects Apache Tomcat: from 11.0.0 through 11.0.10, from 10.1.0 through 10.1.44, from 9.0.0 through 9.0.108.

The following versions were EOL at the time the CVE was created but are

known to be affected: 8.5.6 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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Attack requirements: Present — the target has to be in a particular state for the attack to work.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2025-55752 is classified as CWE-23: Relative Path Traversal. Relative path sequences in user input are not neutralised, so requests can climb out of the intended directory.

Affected software

CVE-2025-55752 is recorded against 4 packages.

  • org.apache.tomcat.embed:tomcat-embed-core (from 8.5.6)
  • org.apache.tomcat:tomcat (from 8.5.6)
  • org.apache.tomcat:tomcat-catalina (from 8.5.6)
  • tomcat

Timeline and source

Published on 27 October 2025 and last revised on 13 May 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
cert-portal.siemens.com (Web)
github.com (Package)
lists.apache.org (Web)
tomcat.apache.org (Web)
tomcat.apache.org (Web)
tomcat.apache.org (Web)
www.vicarius.io (Web)
www.vicarius.io (Web)
www.openwall.com (Web)

Other advisories for this package

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

Same weakness in other software

These advisories are the same class of weakness (CWE-23: Relative Path Traversal) in other software:

CVE-2025-55752 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE CWE-23
Public Exploit ✅ No
Source OSV
Published 2025-10-27
Updated 2026-08-20
Modified 2026-05-13
Fix URL N/A

Affected Packages

Software From version Fixed in
org.apache.tomcat:tomcat 8.5.6 —
org.apache.tomcat:tomcat-catalina 8.5.6 —
org.apache.tomcat.embed:tomcat-embed-core 8.5.6 —
tomcat — —

References

Site Security Check

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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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