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Multiple Apache HTTP Server Vulnerabilities Discovered in Ubuntu

Multiple Apache HTTP Server Vulnerabilities Discovered in Ubuntu

First seen 10 Nov 2026, 08:13 UTC • •
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ThreatCluster AI
ThreatCluster •November 10, 2026 at 08:14 UTC
  • •Apache HTTP Server vulnerabilities affect multiple Ubuntu LTS versions.
  • •Critical issues include denial of service and information leakage risks.
  • •Patches were released on November 10, 2026, for all affected versions.

A series of vulnerabilities affecting the Apache HTTP Server were disclosed, impacting multiple Ubuntu LTS versions. Key issues include improper handling of memory operations, session cookies, and forms of authentication, potentially allowing denial of service attacks and information leaks. The vulnerabilities are tracked under several CVEs, including CVE-2026-46729, CVE-2026-47360, and CVE-2026-56153, with CVSS scores ranging from 5.3 to 9.8. Affected versions include Ubuntu 14.04 LTS through 26.10, with some issues specifically impacting the latest versions. The vulnerabilities were discovered by various researchers, including Zhen Kong and Lucian Nitescu. The updates to address these vulnerabilities were released on November 10, 2026, following their identification in October 2026.

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Timeline

2026-10-01
Vulnerabilities disclosed
Multiple vulnerabilities in Apache HTTP Server were identified, affecting various Ubuntu LTS versions.
Ubuntu
2026-10-01
CVE-2026-46729 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-10-01
CVE-2026-47360 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-10-01
CVE-2026-56153 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE

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Common questions

Which Ubuntu versions are affected?
The vulnerabilities affect Ubuntu 14.04 LTS through 26.10.
What types of attacks are possible?
Attackers could exploit these vulnerabilities to cause denial of service or leak sensitive information.
How urgent is the patching process?
Patching is urgent as the vulnerabilities could lead to significant security risks.