🛡️ CVE-2026-54650 — openhole

🟠 CVSS 8.6 — High ✅ No Known Exploit CWE-22 NVD
8.6
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

openhole-server vulnerable to path traversal via URL-decoded request path

Summary

openhole-server forwarded the URL-decoded request path (r.URL.Path) to tunnel clients instead of the original request-target. Percent-encoded dot-segments (%2e) and separators (%2f) were decoded to ../ and / before reaching the local service.

Go's ServeMux rejects literal ../ paths, but percent-encoded traversal sequences bypassed this and were delivered to backends as working path traversal.

Impact

An unauthenticated remote attacker could read files outside the published web root on tunneled local services that resolve paths without canonicalization.

Example:

  • /%2e%2e/secret.txt → file outside web root
  • /%2e%2e/%2e%2e/etc/passwd → sensitive files

Encoded slashes (/a%2fb) could also bypass path-based access controls.

Fix

v0.1.2 forwards r.URL.EscapedPath() on the server and preserves the request-target on the CLI client.

Users should upgrade both openhole-server and the openhole CLI to v0.1.2 or later.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2026-54650 is classified as CWE-22: Path Traversal. A file path built from user input is not confined to the intended directory, letting an attacker reach files elsewhere on the filesystem.

Affected software

CVE-2026-54650 is recorded against 2 packages.

  • github.com/bablilayoub/openhole
  • unknown

Timeline and source

Published on 28 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)

Details

Severity HIGH
CVSS Score 8.6
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE CWE-22
Public Exploit ✅ No
Source NVD
Published 2026-07-28
Updated 2026-08-12
Modified 2026-07-28
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/bablilayoub/openhole — —
unknown — —

Site Security Check

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