CVE-2025-24813Known exploitationPublic exploitNetwork attack vector

Unauthenticated code execution via partial PUT collision

Published Mar 10, 2025 · Updated Oct 29, 2025

Path equivalence in Apache Tomcat before 9.0.99, 10.1.35, or 11.0.3 allows remote attackers to execute code via partial PUT. The DefaultServlet derives a partial-PUT temporary filename from an attacker-controlled path by replacing path separators with dots, allowing distinct upload paths to collide. Code execution requires write access, partial PUT, file-based session persistence, and a usable deserialization library; other upload layouts permit sensitive-file reads or modification.

CVSS severityUnavailable
Unscored
EPSS probability99.94%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path equivalence in Apache Tomcat before 9.0.99, 10.1.35, or 11.0.3 allows remote attackers to execute code via partial PUT. The DefaultServlet derives a partial-PUT temporary filename from an attacker-controlled path by replacing path separators with dots, allowing distinct upload paths to collide. Code execution requires write access, partial PUT, file-based session persistence, and a usable deserialization library; other upload layouts permit sensitive-file reads or modification.

The record

CVE
CVE-2025-24813
Published
Mar 10, 2025
Updated
Oct 29, 2025
Vendor
The Apache Software Foundation
Product
Apache Tomcat
Classifications
CWE-44, CWE-502, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.1.0-M1 <=10.1.34
  2. Affected versionversion=11.0.0-M1 <=11.0.2
  3. Affected versionversion=8.5.0 <=8.5.100
  4. Affected versionversion=9.0.0.M1 <=9.0.98

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Tomcatversion=10.1.0-M1 <=10.1.34; version=11.0.0-M1 <=11.0.2; version=8.5.0 <=8.5.100; version=9.0.0.M1 <=9.0.98

Published CVSS scores

9.2GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 2026Unavailable
Sep 23, 20261
Sep 24, 2026Unavailable
Sep 25, 2026Unavailable
Sep 26, 2026Unavailable
Sep 27, 2026Unavailable
Sep 28, 2026Unavailable
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-44Path Equivalence: 'file.name' (Internal Dot)
CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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