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Fencer Vulns
high 8.8

CVE-2021-4112 json

A flaw was found in ansible-tower where the default installation is vulnerable to job isolation escape.

published 2022-08-25 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-33992

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

A flaw was found in ansible-tower where the default installation is vulnerable to job isolation escape. This flaw allows an attacker to elevate the privilege from a low privileged user to an AWX user from outside the isolated environment.

Patch / fix

  • ansible-runner ansible automation platform 2.0 2.0.3-3.el8ap
  • python38-ansible-runner ansible automation platform 2.0 2.0.3-3.el8ap
  • ansible-runner ansible automation platform 2.1 2.1.1-2.el8ap
  • python38-ansible-runner ansible automation platform 2.1 2.1.1-2.el8ap

red hat advisories RHSA-2022:0474RHSA-2022:0460

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-4112 updated cvss 8.8

ansible-tower: Privilege escalation via job isolation escape

  • Red Hat Ansible Automation Platform 2.0 for RHEL 8 ansible-runner 2.0.3-3.el8ap, python38-ansible-runner 2.0.3-3.el8ap
    fixed: vendor fix “Red Hat has investigated whether possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHSA-2022:0474
  • Red Hat Ansible Automation Platform 2.1 for RHEL 8 ansible-runner 2.1.1-2.el8ap, python38-ansible-runner 2.1.1-2.el8ap
    fixed: vendor fix “Red Hat has investigated whether possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHSA-2022:0460
  • Red Hat Ansible Tower 3.8 for RHEL 7 Red Hat Ansible Tower 3.8 for RHEL 8
    fixed: vendor fix “Red Hat has investigated whether possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHSA-2022:0482

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

  • n/a ansible-tower

Classification

Weakness
  • CWE-552 Files or Directories Accessible to External Parties

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.