CVE-2026-88922— Go-getter vulnerable to a privilege escalation issue in its archive decompression handling
Quick assessment
Affected
HashiCorp Shared library
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
go-getter 库在 1.8.8 及 2.2.3 版本之前均存在权限提升漏洞，具体表现为其归档解包处理机制存在缺陷：经过精心构造的归档包在解压时，可能导致生成的文件带有提升后的权限位。若解压操作由具有特权的用户执行，本地攻击者即可借此获得解压进程所拥有的权限。该漏洞（CVE-2026-88922）已在 go-getter 1.8.9 和 2.2.4 版本中修复。
Possible ATT&CK Techniques 3 AI
T1548.001 · Setuid and Setgid T1190 · Exploit Public-Facing Application T1548.005 · Temporary Elevated Cloud AccessAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| HashiCorp | Shared library | 1.0.1< 2.2.4 |
affected |
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I. Basic Information for CVE-2026-88922
Vulnerability Information
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Vulnerability Title
Go-getter vulnerable to a privilege escalation issue in its archive decompression handling
Source: CVE Program / CVE List V5
Vulnerability Description
The go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
权限预留不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| HashiCorp | Shared library | 1.0.1 ~ 2.2.4 | - |
|
II. Public POCs for CVE-2026-88922
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-88922 (1)
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V. Comments for CVE-2026-88922
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