CVE-2026-34032

MEDIUMNVD 5.35.3—

5.3

Improper Null Termination, Out-of-bounds 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 v3: 5.3
EG Score: 5.3(high)
EPSS: 44.6%
KEV: Not listed

Published

May 4, 2026

Last Modified

May 4, 2026

Advisory Details (1)

Auto-updated May 4, 2026

⚠️ Active exploitation confirmed. Patch available.

generic Patch Available🔴 Active Exploitation

Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project

https://httpd.apache.org/security/vulnerabilities_24.html

Vendor Advisories for CVE-2026-34032(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

CVE-2026-34032
Microsoft Security Response Center (MSRC)
Apache HTTP Server: mod_proxy_ajp: Heap Buffer Over-Read Due to Missing Null-Termination Check (ajp_msg_get_string)

Frequently asked(5)

What is CVE-2026-34032?

CVE-2026-34032 is a medium vulnerability published on May 4, 2026. Improper Null Termination, Out-of-bounds 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.

When was CVE-2026-34032 disclosed?

CVE-2026-34032 was first published in the National Vulnerability Database on May 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-34032 actively exploited?

CVE-2026-34032 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-34032?

CVE-2026-34032 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2026-34032?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34032, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2026-34032

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project

📣 Vendor Advisories for CVE-2026-34032(1)

❓ Frequently asked(5)