SEPTEMBER 18, 2026
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Case File

CVE-2026-55484

HIGH · CVSS 7.5 EPSS 0.34% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The ALOS HTTP framework for Linux is vulnerable to an out-of-bounds panic due to improper handling of request paths that begin with a question mark, allowing unauthenticated clients to crash the server. This vulnerability can lead to denial-of-service conditions, impacting the availability of applications built on this framework. Organizations using ALOS HTTP should prioritize this update to mitigate potential service disruptions.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55484
Severity
HIGH
CVSS
7.5
EPSS
0.34%
Linux

Original NVD Description

ALOS HTTP is a Linux-first Go web framework and application server built around a custom networking stack. Prior to 0.0.0-20260617230736-314b6783e196, core/utils.go::sanitizeRequestPath calls splitPathQuery on a request path beginning with a question mark and then performs the unchecked p[0] access without checking whether the resulting path is empty. An unauthenticated client can send a malformed request such as a question-mark-only path through h1_plain.go::ParseH1RequestHead, hpack.go::decodeSimpleGetPathHTTPSRequest, hpack.go::observeHeader, or h3_conn.go::handleRequestStream, causing an out-of-bounds panic before core.Recovery() middleware runs and terminating the server process. This issue is fixed in pseudo-version 0.0.0-20260617230736-314b6783e196.