TI-2022-09018 Aliases CVE-2022-25326 GHSA-mpq4-rjj8-fjph

Denial of Service in fscrypt

LOW 24CWE-400Published 2022-02-25 · Updated 2025-04-21

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

fscrypt through v0.3.2 creates a world-writable directory by default when setting up a filesystem, allowing unprivileged users to exhaust filesystem space. We recommend upgrading to fscrypt 0.3.3 or above and adjusting the permissions on existing fscrypt metadata directories where applicable.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00131 2nd percentileScored 2026-11-07

Fix Fixed github.com/google/fscrypt (Go): 0.3.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Google	fscrypt	up to 0.3.2	—	No fix listed	CNA
—	github.com/google/fscrypt (Go)	before 0.3.3	0.3.3	Patch available	GHSA-mpq4-rjj8-fjph

fscrypt VendorGoogle Affected up to 0.3.2 Fixed in — No fix listed CNA
github.com/google/fscrypt (Go) Vendor— Affected before 0.3.3 Fixed in 0.3.3 Patch available GHSA-mpq4-rjj8-fjph

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:google:fscrypt::::::::	up to 0.3.2	Vulnerable	Google

cpe:2.3:a:google:fscrypt:*:*:*:*:*:*:*:* Versions up to 0.3.2 Vulnerable ·Google

Remediation

Fix · GHSA-mpq4-rjj8-fjph github.com/google/fscrypt (Go) Fixed in 0.3.3 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2022-25326
2026-10-03 Alias added: GHSA-mpq4-rjj8-fjph

References

Patch 1

https://github.com/google/fscrypt/pull/346

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2022-25326

Other 2

TI-2022-09020 Privilege escalation through command injection in fscrypt CVSS 3.1HIGH 7.3
TI-2018-04834 The pam_fscrypt module in fscrypt before 0.2.4 may incorrectly restore primary and… CVSS 3.0MEDIUM 6.5
TI-2022-09019 Local Denial of Service in fscrypt PAM module CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences