On Linux the sccache client can execute arbitrary code with the privileges of a local sccache server, by preloading the code in a shared library passed to LD_PRELOAD.


If the server is run as root (which is the default when installing the snap package https://snapcraft.io/sccache ), this means a user running the sccache client can get root privileges.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-x7fr-pg8f-93f5 sccache vulnerable to privilege escalation if server is run as root
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 15 Oct 2025 18:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:sccache:*:*:*:*:*:rust:*:*

Tue, 26 Nov 2024 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla sccache
CPEs cpe:2.3:a:mozilla:sccache:*:*:*:*:*:*:*:*
Vendors & Products Mozilla
Mozilla sccache
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 26 Nov 2024 11:30:00 +0000

Type Values Removed Values Added
Description On Linux the sccache client can execute arbitrary code with the privileges of a local sccache server, by preloading the code in a shared library passed to LD_PRELOAD. If the server is run as root (which is the default when installing the snap package https://snapcraft.io/sccache ), this means a user running the sccache client can get root privileges.
Title Local Privilege Escalation in sccache
Weaknesses CWE-426
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-11-26T20:45:48.176Z

Reserved: 2023-03-20T15:56:33.714Z

Link: CVE-2023-1521

cve-icon Vulnrichment

Updated: 2024-11-26T20:43:22.639Z

cve-icon NVD

Status : Analyzed

Published: 2024-11-26T12:15:18.203

Modified: 2025-10-15T17:49:00.243

Link: CVE-2023-1521

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.