A flaw was found in ansible-tower where the default installation is vulnerable to job…
Priority LOW 38CWE-552Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-552.
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.
Why it matters now
EPSS 0.00248 16th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | ansible-tower | Fixed in ansible-tower 3.8.5 | — | No fix listed | CNA |
- ansible-tower Vendor— Affected Fixed in ansible-tower 3.8.5 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:ansible_automation_platform_early_access:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:ansible_automation_platform_text-only_advisories:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:ansible_tower:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:ansible_automation_platform:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:ansible_automation_platform:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Running on | Red Hat |
- cpe:2.3:a:redhat:ansible_automation_platform_early_access:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:ansible_automation_platform_text-only_advisories:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
- cpe:2.3:a:redhat:ansible_tower:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:ansible_automation_platform:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:ansible_automation_platform:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Red Hat
Remediation
Red Hat 3 advisories
- RHSA-2022:0482 Released 2022-02-08 · Red Hat rating ImportantRed Hat Ansible Ansible Tower 3.8 security update
- Red Hat Ansible Tower 3.8 for RHEL 7
- Red Hat Ansible Tower 3.8 for RHEL 8
- RHSA-2022:0474 Released 2022-02-08 · Red Hat rating ImportantRed Hat Ansible Automation Platform 2.0 ansible-runner security update
- 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
- RHSA-2022:0460 Released 2022-02-08 · Red Hat rating ImportantRed Hat Ansible Automation Platform 2.1 ansible-runner security update
- 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
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Ansible Automation Platform 2.0 for RHEL 8 | Fixed | RHSA-2022:0474 |
| Red Hat Ansible Automation Platform 2.1 for RHEL 8 | Fixed | RHSA-2022:0460 |
| Red Hat Ansible Tower 3.8 for RHEL 7 | Fixed | RHSA-2022:0482 |
| Red Hat Ansible Tower 3.8 for RHEL 8 | Fixed | RHSA-2022:0482 |
Timeline
- 2026-10-02 Threatist record created from CVE-2021-4112
- 2026-10-03 Alias added: GHSA-2q78-vv73-5vr2
References
More Red Hat Ansible Automation Platform vulnerabilities
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2026-35991 Starlette has missing Host header validation that poisons request.url.path, bypassing path-based security checks KEVCVSS 3.1MEDIUM 6.5
- TI-2026-34281 JavaScript Cookie: Per-instance prototype hijack in assign() enables cookie-attribute injection CVSS 3.1HIGH 7.5
- TI-2026-28834 jq: Out-of-Bounds Read in jv_parse_sized() Error Formatting for Non-NUL-Terminated Counted Buffers CVSS 4.0MEDIUM 6.9
- TI-2026-32429 Axios: Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge CVSS 3.1HIGH 7.7
- TI-2023-27712 Python-cryptography: bleichenbacher timing oracle attack against rsa decryption - incomplete fix for cve-2020-25659 CVSS 3.1HIGH 7.5
Sources
- CVE-2021-4112 · CVE Program
- CVE-2021-4112 · NVD
- FIRST EPSS
- GHSA-2q78-vv73-5vr2 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-4112 · Red Hat security data · CC BY 4.0
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