{"cve":"CVE-2023-1521","nvd":{"published":"2024-11-26T12:15:18.203","modified":"2026-06-17T05:28:08.833","status":"Analyzed","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.\n\n\nIf 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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-426"],"references":["https://github.com/advisories/GHSA-x7fr-pg8f-93f5","https://securitylab.github.com/advisories/GHSL-2023-046_ScCache"],"products":["mozilla:sccache"],"source":"nvd","synced_at":"2026-10-19T21:57:34.731061660+00:00"},"epss":{"cve":"CVE-2023-1521","score":0.00363,"percentile":0.30141,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-x7fr-pg8f-93f5","url":"https://osv.dev/vulnerability/GHSA-x7fr-pg8f-93f5","summary":"sccache vulnerable to privilege escalation if server is run as root","modified":"2024-11-26T18:57:08Z","packages":[{"ecosystem":"crates.io","name":"sccache","purl":"pkg:cargo/sccache","ranges":["<0.4.0"],"fixed":["0.4.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}