Apache2: Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted.
A Use After Free vulnerability exists in the Apache HTTP Server module mod_http2 when file handles are already exhausted. This affects Apache HTTP Server versions from 2.4.55 through 2.4.67. The vulnerability can lead to impacts on confidentiality, integrity, and availability. No known exploits are reported in the wild. The affected versions include various Ubuntu package versions of Apache 2.4.x. Patch status is not confirmed from the provided data.
AI Analysis
Technical Summary
This vulnerability is a Use After Free issue in the mod_http2 module of Apache HTTP Server triggered when file handles are exhausted. It affects Apache HTTP Server versions 2.4.55 through 2.4.67, including multiple Ubuntu package versions. The CVSS vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and impacts on confidentiality, integrity, and availability. No vendor advisory or patch information is provided in the data, and no known exploits are reported.
Potential Impact
Successful exploitation could allow an attacker to cause a Use After Free condition, potentially leading to information disclosure, data modification, or denial of service. The CVSS vector suggests the vulnerability is remotely exploitable without authentication and can impact confidentiality, integrity, and availability of the affected server.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Monitor official Apache HTTP Server and Ubuntu security advisories for updates and apply any available patches promptly once released.
Apache2: Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted.
Description
A Use After Free vulnerability exists in the Apache HTTP Server module mod_http2 when file handles are already exhausted. This affects Apache HTTP Server versions from 2.4.55 through 2.4.67. The vulnerability can lead to impacts on confidentiality, integrity, and availability. No known exploits are reported in the wild. The affected versions include various Ubuntu package versions of Apache 2.4.x. Patch status is not confirmed from the provided data.
CVSS v3.1
Score 7.3high
Affected software
pkg:deb/ubuntu/[email protected]+esm11?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]+esm5?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]?arch=source&distro=jammypkg:deb/ubuntu/[email protected]?arch=source&distro=noblepkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=resoluteRun 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
Technical Analysis
This vulnerability is a Use After Free issue in the mod_http2 module of Apache HTTP Server triggered when file handles are exhausted. It affects Apache HTTP Server versions 2.4.55 through 2.4.67, including multiple Ubuntu package versions. The CVSS vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and impacts on confidentiality, integrity, and availability. No vendor advisory or patch information is provided in the data, and no known exploits are reported.
Potential Impact
Successful exploitation could allow an attacker to cause a Use After Free condition, potentially leading to information disclosure, data modification, or denial of service. The CVSS vector suggests the vulnerability is remotely exploitable without authentication and can impact confidentiality, integrity, and availability of the affected server.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Monitor official Apache HTTP Server and Ubuntu security advisories for updates and apply any available patches promptly once released.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-48913
- Osv Schema Version
- 1.7.0
- Aliases
- []
- Ecosystems
- ["Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
- Database Specific Severity
- null
- Cvss Version
- 3.1
Threat ID: 6a6151199c2644c7f8da5c40
Added to database: 07/22/2026, 23:24:09 UTC
Last enriched: 07/22/2026, 23:51:24 UTC
Last updated: 07/31/2026, 15:39:55 UTC
Views: 22
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