Improper input validation in Red Hat Ansible Tower
Priority MEDIUM 43CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-94.
Summary
Ansible Tower through version 3.2.3 has a vulnerability that allows users only with access to define variables for a job template to execute arbitrary code on the Tower server.
Why it matters now
EPSS 0.0247 84th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 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 |
|---|---|---|---|---|---|
| Red Hat | Ansible Tower | through version 3.2.3 | — | No fix listed | CNA |
- Ansible Tower VendorRed Hat Affected through version 3.2.3 Fixed in — No fix listed CNA
Remediation
Red Hat 2 advisories
- RHSA-2018:1972 Released 2018-06-25 · Red Hat rating ImportantRed Hat CloudForms security, bug fix, and enhancement update
- CloudForms Management Engine 5.8 ansible-2.4.4.0-1.el7ae, ansible-tower-server-3.1.7-1.el7at, ansible-tower-setup-3.1.7-1.el7at +7
- RHSA-2018:1328 Released 2018-05-07 · Red Hat rating ImportantCloudForms 4.6.2 bug fix and enhancement update
- CloudForms Management Engine 5.9 ansible-2.4.4.0-1.el7ae, ansible-doc-2.4.4.0-1.el7ae, ansible-tower-3.2.4-1.el7at +29
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| CloudForms Management Engine 5.8 | Fixed | RHSA-2018:1972 |
| CloudForms Management Engine 5.9 | Fixed | RHSA-2018:1328 |
Timeline
- 2026-10-02 Threatist record created from CVE-2018-1104
- 2026-10-03 Alias added: GHSA-4839-8mxx-4xr9
References
More Red Hat Ansible Tower vulnerabilities
- TI-2018-12447 Git before 2.14.5, 2.15.x before 2.15.3, 2.16.x before 2.16.5, 2.17.x before 2.17.2… CVSS 3.0CRITICAL 9.8
- TI-2015-07641 _XcursorThemeInherits in library.c in libXcursor before 1.1.15 allows remote attackers to… CVSS 3.0CRITICAL 9.8
- TI-2018-09275 The get_cookies function in soup-cookie-jar.c in libsoup 2.63.2 allows attackers to have… CVSS 3.0CRITICAL 9.8
- TI-2018-00980 Improper input validation in [UNKNOWN] python CVSS 3.1HIGH 7.5
- TI-2018-16030 Paramiko version 2.4.1, 2.3.2, 2.2.3, 2.1.5, 2.0.8, 1.18.5, 1.17.6 contains a Incorrect… CVSS 3.1HIGH 8.8
- TI-2018-10539 An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before… CVSS 3.0HIGH 8.8
Sources
- CVE-2018-1104 · CVE Program
- CVE-2018-1104 · NVD
- FIRST EPSS
- GHSA-4839-8mxx-4xr9 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-1104 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences