CVE-2026-24469Public exploitNetwork attack vectorHinoki check available

Arbitrary file read via unsanitized request path

Published Jan 24, 2026 · Updated Jan 24, 2026

Path traversal in frustratedProton C++ HTTP Server 1.0 and earlier allows remote attackers to read arbitrary server files via HTTP GET. RequestHandler::handleRequest takes the path after /files/ and directly appends it to files_directory without rejecting or canonicalizing traversal sequences. No authentication or user interaction is required, and successful exploitation exposes readable files without modifying them.

CVSS severity7.5
High
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in frustratedProton C++ HTTP Server 1.0 and earlier allows remote attackers to read arbitrary server files via HTTP GET. RequestHandler::handleRequest takes the path after /files/ and directly appends it to files_directory without rejecting or canonicalizing traversal sequences. No authentication or user interaction is required, and successful exploitation exposes readable files without modifying them.

The record

CVE
CVE-2026-24469
Published
Jan 24, 2026
Updated
Jan 24, 2026
Vendor
frustratedProton
Product
C++ HTTP Server
Classifications
CWE-22, T1190, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

frustratedProton · C++ HTTP Serverversion=<= 1.0

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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