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UBUNTU-CVE-2025-53506

0
Unknown
Vulnerabilitygcveosvubuntu-cve-2025-53506ubuntu-pro-18-04-ltsubuntu-pro-20-04-ltsubuntu-pro-22-04-ltsubuntu-pro-24-04-ltsubuntu-25-10ubuntu-26-04-lts
Published: 07/10/2025 (07/10/2025, 20:15:00 UTC)
Source: GCVE Database
Product: tomcat8

Description

Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other EOL versions may also be affected. Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.

CVSS v3.1

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

Ubuntu:Pro:18.04:LTSmore threats →ghsa
tomcat8
pkg:deb/ubuntu/[email protected]~18.04.3+esm6?arch=source&distro=esm-apps/bionic
Affected versions
=8.5.21-1ubuntu1=8.5.29-1=8.5.30-1=8.5.30-1ubuntu1=8.5.30-1ubuntu1.2=8.5.30-1ubuntu1.3=8.5.30-1ubuntu1.4=8.5.39-1ubuntu1~18.04.1=8.5.39-1ubuntu1~18.04.2=8.5.39-1ubuntu1~18.04.3=8.5.39-1ubuntu1~18.04.3+esm1=8.5.39-1ubuntu1~18.04.3+esm2=8.5.39-1ubuntu1~18.04.3+esm3=8.5.39-1ubuntu1~18.04.3+esm4=8.5.39-1ubuntu1~18.04.3+esm5=8.5.39-1ubuntu1~18.04.3+esm6
Ubuntu:Pro:18.04:LTSmore threats →ghsa
tomcat9
pkg:deb/ubuntu/[email protected]+esm8?arch=source&distro=esm-apps/bionic
Affected versions
=9.0.16-3~18.04.1=9.0.16-3ubuntu0.18.04.1=9.0.16-3ubuntu0.18.04.2=9.0.16-3ubuntu0.18.04.2+esm1=9.0.16-3ubuntu0.18.04.2+esm2=9.0.16-3ubuntu0.18.04.2+esm3=9.0.16-3ubuntu0.18.04.2+esm4=9.0.16-3ubuntu0.18.04.2+esm5=9.0.16-3ubuntu0.18.04.2+esm6=9.0.16-3ubuntu0.18.04.2+esm7=9.0.16-3ubuntu0.18.04.2+esm8
Ubuntu:Pro:20.04:LTSmore threats →ghsa
tomcat9
pkg:deb/ubuntu/[email protected]+esm3?arch=source&distro=esm-apps/focal
Affected versions
=9.0.24-1=9.0.27-1=9.0.31-1=9.0.31-1ubuntu0.1=9.0.31-1ubuntu0.2=9.0.31-1ubuntu0.3=9.0.31-1ubuntu0.4=9.0.31-1ubuntu0.5=9.0.31-1ubuntu0.6=9.0.31-1ubuntu0.7=9.0.31-1ubuntu0.8=9.0.31-1ubuntu0.9=9.0.31-1ubuntu0.9+esm1=9.0.31-1ubuntu0.9+esm2=9.0.31-1ubuntu0.9+esm3
Ubuntu:Pro:22.04:LTSmore threats →ghsa
tomcat9
pkg:deb/ubuntu/[email protected]+esm4?arch=source&distro=esm-apps/jammy
Affected versions
=9.0.43-3=9.0.54-1=9.0.55-1=9.0.58-1=9.0.58-1ubuntu0.1=9.0.58-1ubuntu0.1+esm1=9.0.58-1ubuntu0.1+esm2=9.0.58-1ubuntu0.1+esm3=9.0.58-1ubuntu0.1+esm4=9.0.58-1ubuntu0.2=9.0.58-1ubuntu0.2+esm1=9.0.58-1ubuntu0.2+esm2=9.0.58-1ubuntu0.2+esm3=9.0.58-1ubuntu0.2+esm4
Ubuntu:Pro:24.04:LTSmore threats →ghsa
tomcat10
pkg:deb/ubuntu/[email protected]~esm4?arch=source&distro=esm-apps/noble
Affected versions
=10.1.10-1=10.1.14-1=10.1.15-1=10.1.16-1=10.1.16-1ubuntu0.1~esm1=10.1.16-1ubuntu0.1~esm2=10.1.16-1ubuntu0.1~esm3=10.1.16-1ubuntu0.1~esm4
Ubuntu:25.10more threats →ghsa
tomcat10
pkg:deb/ubuntu/[email protected]?arch=source&distro=questing
Affected versions
=10.1.35-1=10.1.40-1=10.1.40-1ubuntu1=10.1.40-1ubuntu1.25.10.1
Ubuntu:25.10more threats →ghsa
tomcat11
pkg:deb/ubuntu/[email protected]?arch=source&distro=questing
Affected versions
=11.0.6-1
Ubuntu:26.04:LTSmore threats →ghsa
tomcat10
pkg:deb/ubuntu/[email protected]~26.04.1?arch=source&distro=resolute
Affected versions
=10.1.40-1ubuntu1=10.1.40-1ubuntu1.26.04.1=10.1.55-1ubuntu2~26.04.1
Ubuntu:26.04:LTSmore threats →ghsa
tomcat11
pkg:deb/ubuntu/[email protected]~26.04.1?arch=source&distro=resolute
Affected versions
=11.0.6-1=11.0.11-1=11.0.15-1=11.0.18-1=11.0.18-1ubuntu0.1~esm1=11.0.22-2ubuntu2~26.04.1

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2025-53506
Osv Schema Version
1.7.0
Aliases
[]
Ecosystems
["Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:Pro:22.04:LTS","Ubuntu:Pro:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
Database Specific Severity
null
Cvss Version
3.1

Threat ID: 6a58b50368715ace43db288c

Added to database: 07/16/2026, 10:40:03 UTC

Last updated: 07/16/2026, 10:40:03 UTC

Views: 1

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