# CVE-2026-63292 — Apache HTTP Server

> As of 2026-10-01, CVE-2026-63292 is a HIGH-severity vulnerability in Apache HTTP Server, CVSS v3.1 7.5, EPSS 0.8% (57.7th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-63292, most recently “Multiple Vulnerabilities in Apache HTTP Server 2.4.0 through 2.4.68 (20 CVEs, fixed in 2.4.69)”.

**Last updated:** 2026-10-01

## What is CVE-2026-63292?

Stack-based buffer overflow in mod_vhost_alias in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows a remote client to cause a denial of service or potentially execute arbitrary code via an HTTP request with a Host header exceeding 8192 bytes when VirtualDocumentRoot uses a hostname format specifier and LimitRequestFieldSize is raised above the default. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

The record classifies CVE-2026-63292 under weakness class [CWE-121](https://intel.threadlinqs.com/cwe/CWE-121). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 22 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **EPSS (FIRST):** 0.8% probability of exploitation in the next 30 days, higher than 57.7% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 8.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-10-01

## Is CVE-2026-63292 being exploited?

Weaponised exploit code for CVE-2026-63292 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 55 in the Threadlinqs vulnerability feed.

- [0xBlackash/CVE-2026-63292](https://github.com/0xBlackash/CVE-2026-63292) (github)

## Affected products and versions

- [Apache Software Foundation](https://intel.threadlinqs.com/vendors/apache-software-foundation): Apache HTTP Server

## How to fix CVE-2026-63292

Vendor advisory: [https://httpd.apache.org/security/vulnerabilities_24.html](https://httpd.apache.org/security/vulnerabilities_24.html). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-63292

1 tracked threat in the Threadlinqs corpus references CVE-2026-63292, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Multiple Vulnerabilities in Apache HTTP Server 2.4.0 through 2.4.68 (20 CVEs, fixed in 2.4.69)](https://intel.threadlinqs.com/threat/TL-2026-2876) — MEDIUM · 2026-10-02

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-10. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [httpd.apache.org — vendor advisory](https://httpd.apache.org/security/vulnerabilities_24.html)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-63292
Full detection coverage and IOCs for threats exploiting CVE-2026-63292 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp