CVE-2026-24880

Aliases:GHSA-563x-q5rq-57qpBIT-tomcat-2026-24880UBUNTU-CVE-2026-24880DEBIAN-CVE-2026-24880
Advisory lineage Upstream: 0 Downstream: 15
Analyzed
Published: 09 Apr 2026, 19:12
Last modified:10 Apr 2026, 18:33

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
0.52% LOW
1% probability +0.07%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Apr 2026, 19:12
Published
Vulnerability first disclosed
10 Apr 2026, 18:33
Last Modified
Vulnerability information updated

Description

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat via invalid chunk extension. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M1 through 9.0.115, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other, unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.20, 10.1.52 or 9.0.116, which fix the issue.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Trends

Current EPSS score: 0.52%• Percentile: 42%

Techniques & Countermeasures

  • CWE-444•Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

    The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

Affected Systems

  • apache software foundation•apache tomcat

    ≥ 11.0.0-M1, ≤ 11.0.18 | ≥ 10.1.0-M1, ≤ 10.1.52 | ≥ 9.0.0.M1, ≤ 9.0.115 | ≥ 8.5.0, ≤ 8.5.100 | ≥ 7.0.0, ≤ 7.0.109

  • apache•tomcat

    ≥ 9.0.0, < 9.0.116 | ≥ 10.1.0, < 10.1.53 | ≥ 11.0.0, < 11.0.20

  • debian•tomcat10

    < 10.1.55-1~deb12u1 | < 10.1.55-1~deb13u1 | < 10.1.54-1

  • debian•tomcat11

    < 11.0.22-1~deb13u1 | < 11.0.21-1

  • debian•tomcat9

    < 9.0.118-0+deb11u1 | < 9.0.70-2 | < 9.0.70-2 | < 9.0.70-2

  • ubuntu•tomcat10

    all | all | all

  • ubuntu•tomcat11

    all | all

  • ubuntu•tomcat6

    all

  • ubuntu•tomcat7

    all

  • ubuntu•tomcat8

    all

  • ubuntu•tomcat9

    all | all | all | all

  • org.apache.tomcat•tomcat

    ≥ 7.0.0, < 9.0.116 | ≥ 10.1.0-M1, < 10.1.52 | ≥ 11.0.0-M1, < 11.0.20

  • org.apache.tomcat•tomcat-catalina

    ≥ 7.0.0, < 9.0.116 | ≥ 10.1.0-M1, < 10.1.52 | ≥ 11.0.0-M1, < 11.0.20

  • org.apache.tomcat•tomcat-coyote

    ≥ 7.0.0, < 9.0.116 | ≥ 10.1.0-M1, < 10.1.52 | ≥ 11.0.0-M1, < 11.0.20

  • org.apache.tomcat•tomcat-tribes

    ≥ 7.0.0, < 9.0.116 | ≥ 10.1.0-M1, < 10.1.52 | ≥ 11.0.0-M1, < 11.0.20

  • org.apache.tomcat.embed•tomcat-embed-core

    ≥ 7.0.0, < 9.0.116 | ≥ 10.1.0-M1, < 10.1.52 | ≥ 11.0.0-M1, < 11.0.20

References (17)