# CVE-2023-1521: sccache: On Linux the sccache client can execute arbitrary code with the privileges of a local sccache server, by preloading t...

CVE-2023-1521 is fixed in sccache on 1 platform, first by DEBIAN-CVE-2023-1521, released November 26, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-1521
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0036
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 26, 2024

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | sccache Debian 13.5 (trixie) | 0.5.3-1 | [DEBIAN-CVE-2023-1521](https://patchblox.com/security/data/fix/linux/debian-cve-2023-1521.md) | Nov 26, 2024 |
| Linux | sccache Debian 14 | 0.5.3-1 | [DEBIAN-CVE-2023-1521](https://patchblox.com/security/data/fix/linux/debian-cve-2023-1521.md) | Nov 26, 2024 |

---

Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.