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VulnerabilityPublished Updated

CVE-2026-114608: Pylint is a static code analyser for Python

Affects pylintSource GCVE Database

0
Authoritative record:CVE-2026-114608· Medium 5.4

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

CVSS 4.0 base score
5.4Medium
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
Ubuntu 26.10pylintpkg:deb/ubuntu/pylint?arch=source&distro=stonkingOther threatsAffected
  • =4.0.5-1
  • =4.0.6-1
  • =4.0.8-1
Fixed in–
Ubuntu 26.04 LTSpylintpkg:deb/ubuntu/pylint?arch=source&distro=resoluteOther threatsAffected
  • =3.3.4-2
  • =4.0.4-1
  • =4.0.5-1
Fixed in–
Ubuntu 24.04 LTSpylintpkg:deb/ubuntu/pylint?arch=source&distro=nobleOther threatsAffected
  • =2.17.4-1
  • =3.0.3-1
  • =3.0.3-2
Fixed in–
Ubuntu 22.04 LTSpylintpkg:deb/ubuntu/pylint?arch=source&distro=jammyOther threatsAffected
  • =2.7.2-3ubuntu1
  • =2.11.1-1
  • =2.12.2-1
Fixed in–
Ubuntu 20.04 LTSpylintpkg:deb/ubuntu/pylint?arch=source&distro=focalOther threatsAffected
  • =2.2.2-3
  • =2.4.4-1
  • =2.4.4-2
Fixed in–
Ubuntu 18.04 LTSpylintpkg:deb/ubuntu/pylint?arch=source&distro=bionicOther threatsAffected
  • =1.7.2-0ubuntu4
  • =1.8.1-1
  • =1.8.3-1
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

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