CVE-2026-114608: Pylint is a static code analyser for Python
Affects pylintSource GCVE Database
Not known to be exploited · CVSS 5.4 Medium · fixed in 4.0.9 : update pylint when convenient.
Data as of 28 Oct 2026, 22:31 UTC
- Patch
- Available – fixed in 4.0.9
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 22 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10pylintpkg:deb/ubuntu/pylint?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSpylintpkg:deb/ubuntu/pylint?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSpylintpkg:deb/ubuntu/pylint?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSpylintpkg:deb/ubuntu/pylint?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 20.04 LTSpylintpkg:deb/ubuntu/pylint?arch=source&distro=focalOther threats | Affected
| Fixed in– |
Ubuntu 18.04 LTSpylintpkg:deb/ubuntu/pylint?arch=source&distro=bionicOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
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, 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.
References
- ubuntu.com/security/CVE-2026-114608 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-114608 (opens in a new tab)
- github.com/pylint-dev/pylint/commit/58c87cffca9de2b3e89aa07b89686cbc90cfea2d (opens in a new tab)
- github.com/pylint-dev/pylint/commit/5b241f66318220e9ba7b21ca631fbfe8e77682ca (opens in a new tab)
- github.com/pylint-dev/pylint/releases/tag/v4.0.9 (opens in a new tab)
- github.com/pylint-dev/pylint/security/advisories/GHSA-22qq-2fwx-7p67 (opens in a new tab)