# CVE-2026-84706: Automation-controller: automation-controller-container: automation-controller: credential type env-injector deny-list omits process-hijacking variables (bash_env/ld_preload) allowing code execution in the execution environment

Status: published. Published: 2026-09-23. Updated: 2026-11-04.

A flaw was found in Ansible Automation Platform's automation-controller. The custom
Credential Type environment-variable injector validates variable names against a
deny-list (an ANSIBLE_* prefix check plus a fixed ENV_BLOCKLIST) that omits
process-hijacking loader variables such as BASH_ENV, ENV, LD_PRELOAD, LD_LIBRARY_PATH,
PYTHONSTARTUP and GIT_SSH_COMMAND. Combined with the credential file injector, a
privileged user can write an attacker-controlled script into the execution environment
and point BASH_ENV at it, obtaining arbitrary code execution inside the
execution-environment container for any job that attaches a credential of that type.

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. (source: CNA: redhat)

## Affected products and versions

- Red Hat / Red Hat Ansible Automation Platform 2.5 for RHEL 8 (automation-controller): ≥ 0:4.6.33-1.el8ap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Ansible Automation Platform 2.5 for RHEL 9 (automation-controller): ≥ 0:4.6.33-1.el9ap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Ansible Automation Platform 2.6 for RHEL 9 (automation-controller): ≥ 0:4.7.17-1.el9ap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Ansible Automation Platform 2.6 (ansible-automation-platform-26/controller-rhel9): ≥ 1789673739; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Ansible Automation Platform 2.7 (ansible-automation-platform-27/controller-rhel9): ≥ 1789580684; < * (unaffected, rpm). Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 7.6 (high); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:N; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 0.31% as of 2026-11-04; percentile 23.57%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-184

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2026:71113 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71114 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71177 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71179 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-84706 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2527187 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-84706; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-84706; retrieved 2026-11-05; source updated Not reported

Revision: 19f5d3390a28b1f0d9d3de36aaaacf5f9bba0ca2c0b955f6996040a4bea8a9bd

Canonical: https://y2.dev/cve/CVE-2026-84706

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