CVE-2026-34059
highpriority · track · 0EPSS 0.010 · 61 %ileDEEUNLRUUSEPSS · scored 2026-10-23
Buffer Over-read vulnerability in Apache HTTP Server. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (37)
Products and version ranges known to be affected.
- IBM Business Automation Workflow 24.0.0-24.0.1all versionscert_bundDEcpe:/a:ibm:business_automation_workflow:24.0.0_-_24.0.1
- IBM Business Automation Workflow 25.0.0-25.0.1all versionscert_bundDEcpe:/a:ibm:business_automation_workflow:25.0.0_-_25.0.1
- IBM DevOps Code ClearCase 11.0.0-11.0.0.05all versionscert_bundDEcpe:/a:ibm:devops_code_clearcase:11.0.0_-_11.0.0.05
- IBM Rational ClearCase 10.0.0-10.0.1.05all versionscert_bundDEcpe:/a:ibm:rational_clearcase:10.0.0_-_10.0.1.05
- IBM Rational ClearCase 9.1.0-9.1.0.10all versionscert_bundDEcpe:/a:ibm:rational_clearcase:9.1.0_-_9.1.0.10
- IBM Rational ClearQuest 10.0-10.0.10all versionscert_bundDEcpe:/a:ibm:rational_clearquest:10.0_-_10.0.10
- IBM Rational ClearQuest 9.1-9.1.0.11all versionscert_bundDEcpe:/a:ibm:rational_clearquest:9.1_-_9.1.0.11
advisories (4)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0134Kwetsbaarheden verholpen in Apache HTTP ServerNL2026-05-06csaf · ncsc_nlNL
Apache Software Foundation heeft meerdere kwetsbaarheden verholpen in Apache HTTP Server.
- WID-SEC-W-2026-1354Apache HTTP Server: Mehrere SchwachstellenDeutsch2026-05-04csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apache HTTP Server ausnutzen, um erweiterte Privilegien zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
- WID-SEC-W-2026-1723Oracle Communications Unified Assurance: Mehrere SchwachstellenDeutsch2026-05-28csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications Unified Assurance ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- BIT-apache-2026-34059Apache HTTP Server: mod_proxy_ajp: Heap Over-Read and memory disclosure in ajp_parse_data()2026-05-05vendor · osvUS
Buffer Over-read vulnerability in Apache HTTP Server. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://httpd.apache.org/security/vulnerabilities_24.htmlPatchcnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34059cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-34059cnnvd
- https://httpd.apache.org/security/vulnerabilities_24.htmlenisa_euvd
- http://www.openwall.com/lists/oss-security/2026/05/04/17Mailing ListThird Party Advisorynvd
- https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisorynvd
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