CVE-2026-31235

CRITICAL

imgaug <= 0.4.0 - Remote Code Execution via Insecure Pickle Deserialization in BackgroundAugmenter

Title source: llm
STIX 2.1

Description

The imgaug library thru 0.4.0 contains an insecure deserialization vulnerability in its BackgroundAugmenter class within the multicore.py module. The class uses Python's pickle module to deserialize data received via a multiprocessing queue in the _augment_images_worker() method without any safety checks. An attacker who can influence the data placed into this queue (e.g., through social engineering, malicious input scripts, or a compromised shared queue) can provide a malicious pickle payload. When deserialized, this payload can execute arbitrary code in the context of the worker process, leading to remote or local code execution depending on the deployment scenario.

Scores

CVSS v3 9.8
EPSS 0.0047
EPSS Percentile 36.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-502
Status published
Products (1)
pypi/imgaug 0 - 0.4.0PyPI
Published May 12, 2026
Tracked Since May 12, 2026