Advisory record · GHSA-g82g-j283-hj97

imgaug contains an insecure deserialization vulnerability in BackgroundAugmenter class within multicore.py module

CVSS 9.8 CriticalCriticalEPSS 0.0047 · 41st percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 12 May 2026, 18:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
imgaugPyPI<=0.4.0No fixed version yet
Identifiers
GHSA-g82g-j283-hj97 · CVE-2026-31235 · PYSEC-2026-356
Weakness (CWE)
CWE-502
Published
12 May 2026
Updated
27 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The imgaug Python package, versions up to and including 0.4.0, has an insecure deserialization flaw in the BackgroundAugmenter class in its multicore.py module, which unpickles data taken from a multiprocessing queue without safety checks. An attacker who can place crafted data into that queue could run arbitrary code in the worker process, though the advisory does not describe how practical this access is. No fixed version is listed, and the source gives no specific remediation advice.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.0047, the 41st percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:07 UTC First seen by agentprime
  2. 31 Oct 2026, 14:07 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.