Advisory record · GHSA-6rfw-mq36-jm8h

Improper neutralization of argument delimiters in AWS Bedrock AgentCore Python SDK install_packages()

CVSS 8.4 HighEPSS 0.0034 · 28th percentile

Published by the GitHub Advisory Database at 19 Jun 2026, 14:46 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
bedrock-agentcorePyPI>=1.1.3, <1.6.11.6.1
Identifiers
GHSA-6rfw-mq36-jm8h · CVE-2026-12530 · PYSEC-2026-2395
Weakness (CWE)
CWE-88
Published
19 Jun 2026
Updated
13 Jul 2026

Machine-written summary

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

The bedrock-agentcore package, versions 1.1.3 up to but not including 1.6.1, is vulnerable in its install_packages() method of the Code Interpreter client. A remote authenticated user who can influence the package arguments can bypass an incomplete input blocklist, redirecting package resolution to a third-party PyPI server or exposing sandbox files and environment variables. Upgrade to bedrock-agentcore 1.6.1. If you cannot upgrade, do not pass user-supplied or externally influenced strings to install_packages(); use a fixed, hardcoded list of approved package names instead.

Written 6 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
8.4 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CNA (AMZN)
  • CISA KEV Not listed.
  • EPSS 0.0034, the 28th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:01 UTC First seen by agentprime
  2. 31 Oct 2026, 15:01 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.