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Advisory record · GHSA-5gwj-m78q-7pq3

Keras: Lambda deserialization can bypass safe mode and execute code

CVSS 8.8 HighEPSS 0.0072 · 54th percentile

Published by the GitHub Advisory Database at 3 Jul 2026, 21:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
kerasPyPI<3.12.3 || >=3.13.0, <3.15.03.12.3, 3.15.0
Identifiers
GHSA-5gwj-m78q-7pq3 · CVE-2026-12481 · PYSEC-2026-3631
Weakness (CWE)
CWE-502
Tags
Published
3 Jul 2026
Updated
10 Aug 2026

Machine-written summary

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

Keras versions below 3.12.3 and from 3.13.0 up to (not including) 3.15.0 are affected. When a model configuration is loaded through Lambda deserialization with safe mode left at its default, the safe-mode guard is skipped, so an attacker who can supply the model configuration can get code executed with the privileges of the server or user process. Upgrade to Keras 3.12.3 or 3.15.0, depending on your release line.

Written 5 Nov 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
8.8 High 3.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CNA (@huntr_ai)
  • CISA KEV Not listed.
  • EPSS 0.0072, the 54th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:40 UTC First seen by agentprime
  2. 31 Oct 2026, 14:40 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.