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VulnerabilityPublished Updated

CVE-2024-23672: Tomcat7 · Denial of Service via incomplete cleanup vulnerability in Apache Tomcat

Affects tomcat7Source GCVE Database

0
Authoritative record:CVE-2024-23672· Medium 6.3

Not known to be exploited · CVSS 6.3 Medium · fixed in 8.5.39-1ubuntu1~18.04.3+esm5 : update tomcat7 when convenient.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
6.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
2.3% chance of exploitation in 30 days – higher than 83% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 8.5.39-1ubuntu1~18.04.3+esm5, 9.0.16-3ubuntu0.18.04.2+esm4, 9.0.31-1ubuntu0.8 +4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Mar 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 25.10tomcat9pkg:deb/ubuntu/tomcat9?arch=source&distro=questingOther threatsAffected
  • <9.0.70-2ubuntu3
Fixed in
  • 9.0.70-2ubuntu3
Ubuntu Pro 24.04 LTStomcat10pkg:deb/ubuntu/tomcat10?arch=source&distro=esm-apps/nobleOther threatsAffected
  • <10.1.16-1ubuntu0.1~esm2
Fixed in
  • 10.1.16-1ubuntu0.1~esm2
Ubuntu Pro 24.04 LTStomcat9pkg:deb/ubuntu/tomcat9?arch=source&distro=esm-apps/nobleOther threatsAffected
  • <9.0.70-2ubuntu0.1+esm2
Fixed in
  • 9.0.70-2ubuntu0.1+esm2
Ubuntu Pro 22.04 LTStomcat9pkg:deb/ubuntu/tomcat9?arch=source&distro=esm-apps/jammyOther threatsAffected
  • <9.0.58-1ubuntu0.1+esm4
Fixed in
  • 9.0.58-1ubuntu0.1+esm4
Ubuntu 20.04 LTStomcat9pkg:deb/ubuntu/tomcat9?arch=source&distro=focalOther threatsAffected
  • <9.0.31-1ubuntu0.8
Fixed in
  • 9.0.31-1ubuntu0.8
Ubuntu Pro 18.04 LTStomcat8pkg:deb/ubuntu/tomcat8?arch=source&distro=esm-apps/bionicOther threatsAffected
  • <8.5.39-1ubuntu1~18.04.3+esm5
Fixed in
  • 8.5.39-1ubuntu1~18.04.3+esm5

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

References

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