{"id":"CVE-2026-114608","title":"Pylint: Arbitrary code execution via pickle deserialization of the stats cache in PYLINT_HOME","summary":"Pylint is a static code analyser for Python. From 0.15.2 until 4.0.9, Pylint stores module statistics in predictable files under PYLINT_HOME and loads those files with pickle.load on a later run. An attacker who can write to a shared, gr…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-502"],"vendor":"pylint-dev","product":"pylint","affected":["pylint < 4.0.9"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T16:50:02.569Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-114608","references":[{"url":"https://github.com/pylint-dev/pylint/security/advisories/GHSA-22qq-2fwx-7p67","label":"https://github.com/pylint-dev/pylint/security/advisories/GHSA-22qq-2fwx-7p67"},{"url":"https://github.com/pylint-dev/pylint/commit/58c87cffca9de2b3e89aa07b89686cbc90cfea2d","label":"https://github.com/pylint-dev/pylint/commit/58c87cffca9de2b3e89aa07b89686cbc90cfea2d"},{"url":"https://github.com/pylint-dev/pylint/commit/5b241f66318220e9ba7b21ca631fbfe8e77682ca","label":"https://github.com/pylint-dev/pylint/commit/5b241f66318220e9ba7b21ca631fbfe8e77682ca"},{"url":"https://github.com/pylint-dev/pylint/releases/tag/v4.0.9","label":"https://github.com/pylint-dev/pylint/releases/tag/v4.0.9"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T22:00:50.346Z","slug":"CVE-2026-114608","body":"## Overview\n\nPylint is a static code analyser for Python. From 0.15.2 until 4.0.9, Pylint stores module statistics in predictable files under PYLINT_HOME and loads those files with pickle.load on a later run. An attacker who can write to a shared, group-writable, or otherwise untrusted cache directory can replace a stats cache with crafted serialized data, causing arbitrary code to execute with the privileges of the user who next runs Pylint. The default per-user cache is not normally writable by another user. This issue is fixed in version 4.0.9.\n\n## Affected\n\n- `pylint < 4.0.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}