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EPSS 0.6%top 53%

CMP Indefinite Cache Growth of ExtraCerts

0
Low
VulnerabilityCVE-2026-63074gcveosvubuntu-cve-2026-63074cve-2026-63074ubuntu-pro-16-04-ltsubuntu-pro-18-04-ltsubuntu-22-04-ltsubuntu-pro-fips-preview-22-04-ubuntu-pro-fips-updates-22-04-ubuntu-24-04-ltsubuntu-pro-fips-updates-24-04-ubuntu-26-04-ltscsafmicrosoft-security-response-ce
Published: 08/27/2026 (08/27/2026, 01:11:34 UTC)
Source: GCVE Database
Vendor/Project: Microsoft Security Response Center
Product: Microsoft

Description

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

Affected software

Ubuntu:Pro:16.04:LTSmore threats →ghsa
nodejs
pkg:deb/ubuntu/nodejs?arch=source&distro=esm-apps/xenial
Affected versions
=0.10.25~dfsg2-2ubuntu1=4.2.2~dfsg-1=4.2.3~dfsg-1=4.2.4~dfsg-1ubuntu1=4.2.4~dfsg-2=4.2.6~dfsg-1ubuntu1=4.2.6~dfsg-1ubuntu4=4.2.6~dfsg-1ubuntu4.1=4.2.6~dfsg-1ubuntu4.2=4.2.6~dfsg-1ubuntu4.2+esm1=4.2.6~dfsg-1ubuntu4.2+esm2=4.2.6~dfsg-1ubuntu4.2+esm3
Ubuntu:Pro:18.04:LTSmore threats →ghsa
nodejs
pkg:deb/ubuntu/nodejs?arch=source&distro=esm-apps/bionic
Affected versions
=6.11.4~dfsg-1ubuntu1=6.11.4~dfsg-1ubuntu2=6.12.0~dfsg-1ubuntu1=6.12.0~dfsg-2ubuntu1=6.12.0~dfsg-2ubuntu2=8.10.0~dfsg-2=8.10.0~dfsg-2ubuntu0.2=8.10.0~dfsg-2ubuntu0.3=8.10.0~dfsg-2ubuntu0.4=8.10.0~dfsg-2ubuntu0.4+esm1=8.10.0~dfsg-2ubuntu0.4+esm2=8.10.0~dfsg-2ubuntu0.4+esm3=8.10.0~dfsg-2ubuntu0.4+esm4=8.10.0~dfsg-2ubuntu0.4+esm5=8.10.0~dfsg-2ubuntu0.4+esm6
Ubuntu:22.04:LTSmore threats →ghsa
openssl
pkg:deb/ubuntu/openssl?arch=source&distro=jammy
Affected versions
<3.0.2-0ubuntu1.29=1.1.1l-1ubuntu1=3.0.0-1ubuntu1=3.0.1-0ubuntu1=3.0.2-0ubuntu1=3.0.2-0ubuntu1.1=3.0.2-0ubuntu1.2=3.0.2-0ubuntu1.4=3.0.2-0ubuntu1.5=3.0.2-0ubuntu1.6=3.0.2-0ubuntu1.7=3.0.2-0ubuntu1.8=3.0.2-0ubuntu1.9=3.0.2-0ubuntu1.10=3.0.2-0ubuntu1.12=3.0.2-0ubuntu1.13=3.0.2-0ubuntu1.14=3.0.2-0ubuntu1.15=3.0.2-0ubuntu1.16=3.0.2-0ubuntu1.17=3.0.2-0ubuntu1.18=3.0.2-0ubuntu1.19=3.0.2-0ubuntu1.20=3.0.2-0ubuntu1.21=3.0.2-0ubuntu1.23=3.0.2-0ubuntu1.25=3.0.2-0ubuntu1.26
Ubuntu:Pro:FIPS-preview:22.04:LTSmore threats →ghsa
openssl
pkg:deb/ubuntu/openssl?arch=source&distro=fips-preview/jammy
Affected versions
=3.0.2-0ubuntu1.10+Fips1=3.0.2-0ubuntu1.12+Fips1
Ubuntu:Pro:FIPS-preview:22.04:LTSmore threats →ghsa
openssl-fips
pkg:deb/ubuntu/openssl-fips?arch=source&distro=fips-preview/jammy
Affected versions
=3.0.5-0ubuntu0.1+Fips2.1
Ubuntu:Pro:FIPS-updates:22.04:LTSmore threats →ghsa
openssl
pkg:deb/ubuntu/openssl?arch=source&distro=fips-updates/jammy
Affected versions
=3.0.2-0ubuntu1.10+Fips1=3.0.2-0ubuntu1.12+Fips1=3.0.2-0ubuntu1.14+Fips1=3.0.2-0ubuntu1.15+Fips1=3.0.2-0ubuntu1.16+Fips1=3.0.2-0ubuntu1.17+Fips1=3.0.2-0ubuntu1.18+Fips1=3.0.2-0ubuntu1.19+Fips1=3.0.2-0ubuntu1.20+Fips1=3.0.2-0ubuntu1.21+Fips1=3.0.2-0ubuntu1.23+Fips1=3.0.2-0ubuntu1.25+Fips1=3.0.2-0ubuntu1.26+Fips1
Ubuntu:Pro:FIPS-updates:22.04:LTSmore threats →ghsa
openssl-fips
pkg:deb/ubuntu/openssl-fips?arch=source&distro=fips-updates/jammy
Affected versions
=3.0.5-0ubuntu0.1+Fips2.1=3.0.5-0ubuntu0.2+Fips1
Ubuntu:24.04:LTSmore threats →ghsa
edk2
pkg:deb/ubuntu/edk2?arch=source&distro=noble
Affected versions
=2023.05-2=2023.11-2=2023.11-3=2023.11-4=2023.11-5=2023.11-6=2023.11-8=2024.02-1=2024.02-2=2024.02-2ubuntu0.1=2024.02-2ubuntu0.3=2024.02-2ubuntu0.4=2024.02-2ubuntu0.5=2024.02-2ubuntu0.6=2024.02-2ubuntu0.7=2024.02-2ubuntu0.8=2024.02-2ubuntu0.9
Ubuntu:24.04:LTSmore threats →ghsa
openssl
pkg:deb/ubuntu/openssl?arch=source&distro=noble
Affected versions
<3.0.13-0ubuntu3.15=3.0.10-1ubuntu2=3.0.10-1ubuntu2.1=3.0.10-1ubuntu3=3.0.10-1ubuntu4=3.0.13-0ubuntu2=3.0.13-0ubuntu3=3.0.13-0ubuntu3.1=3.0.13-0ubuntu3.2=3.0.13-0ubuntu3.3=3.0.13-0ubuntu3.4=3.0.13-0ubuntu3.5=3.0.13-0ubuntu3.6=3.0.13-0ubuntu3.7=3.0.13-0ubuntu3.9=3.0.13-0ubuntu3.11=3.0.13-0ubuntu3.12
Ubuntu:Pro:FIPS-updates:24.04:LTSmore threats →ghsa
openssl-fips
pkg:deb/ubuntu/openssl-fips?arch=source&distro=fips-updates/noble
Affected versions
=3.0.13-0ubuntu3+Fips1=3.0.13-0ubuntu3.6+Fips1=3.0.13-0ubuntu3.12+Fips1
Ubuntu:26.04:LTSmore threats →ghsa
edk2
pkg:deb/ubuntu/edk2?arch=source&distro=resolute
Affected versions
=2025.02-8ubuntu3=2025.11-3ubuntu6=2025.11-3ubuntu7
Ubuntu:26.04:LTSmore threats →ghsa
openssl
pkg:deb/ubuntu/openssl?arch=source&distro=resolute
Affected versions
<3.5.5-1ubuntu3.4=3.5.3-1ubuntu2=3.5.5-1ubuntu1=3.5.5-1ubuntu3=3.5.5-1ubuntu3.2=3.5.5-1ubuntu3.3

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

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/10/2026, 07:55:17 UTC

Technical Analysis

The vulnerability identified as CVE-2026-63074 involves OpenSSL's improper limitation of the growth of an internal certificate cache used during Certificate Management Protocol (CMP) operations. This flaw can be triggered remotely to cause excessive resource consumption, resulting in a denial of service. The issue affects multiple Ubuntu LTS versions and related OpenSSL packages. Ubuntu has released patches to fix this vulnerability as part of security notices USN-8678-1 and USN-8678-2. The vulnerability is classified under CWE-770 (Allocation of Resources Without Limits or Throttling).

Potential Impact

A remote attacker could exploit this vulnerability to cause OpenSSL to consume excessive system resources, leading to a denial of service. There is no indication of code execution or data disclosure. The impact is limited to resource exhaustion and service disruption.

Mitigation Recommendations

A fix is available and has been released by Ubuntu. Users should apply the security updates provided in Ubuntu Security Notices USN-8678-1 and USN-8678-2 to upgrade OpenSSL packages to the fixed versions. After updating, a system reboot is recommended to ensure all changes take effect. No additional mitigation actions are required beyond applying the official patches.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2026-63074
Osv Schema Version
1.7.0
Ecosystems
["Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:22.04:LTS","Ubuntu:Pro:FIPS-preview:22.04:LTS","Ubuntu:Pro:FIPS-updates:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:Pro:FIPS-updates:24.04:LTS","Ubuntu:26.04:LTS"]
Cvss Version
3.1

Patch Information

Threat ID: 6a9053e7acd9273b49696877

Added to database: 08/27/2026, 15:12:39 UTC

Last enriched: 09/10/2026, 07:55:17 UTC

Last updated: 10/11/2026, 18:48:20 UTC

Views: 77

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