CVE-2021-3583: redhat ansible_automation_platform Improper Input Validation
Vulnerability summary
CVE-2021-3583 is a high (CVSS 7.1) Improper Input Validation vulnerability in redhat ansible_automation_platform. EPSS estimates a 0.90% chance of exploitation in the next 30 days, higher than 59.6% of scored vulnerabilities.
Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 9Timeline
- 22-09-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A flaw was found in Ansible, where a user's controller is vulnerable to template injection. This issue can occur through facts used in the template if the user is trying to put templates in multi-line YAML strings and the facts being handled do not routinely include special template characters. This flaw allows attackers to perform command injection, which discloses sensitive information. The highest threat from this vulnerability is to confidentiality and integrity.
CVSS metrics
7 scores · 5 sources · 3 versions- OSV · PypiEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- OSV · Red hatEcosystem advisory · calculated6.6MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.90%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.90% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-94Improper Control of Generation of CodeThe product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat5 products
- ansible_automation_platform1.2
- ansible_engine< 2.9.23
- ansible_tower< 3.7.0
- ansible< 0:2.9.23-1.el8ap | < 0:2.9.23-1.el7ae | < 0:2.9.23-1.el8ae
- ansible-test< 0:2.9.23-1.el7ae | < 0:2.9.23-1.el8ae
Debian2 products
- ansible< 5.4.0-1
- ansible-core< 2.12.0-1
PyPI1 product
- ansible< 2.9.23rc1 | ≥ 2.10.0a1, < 2.10.11rc1 | ≥ 2.11.0a1, < 2.11.2rc1 | < 2.9.23
Ubuntu1 product
- ansible< 2.0.0.2-2ubuntu1.3+esm1 | < 2.5.1+dfsg-1ubuntu0.1+esm1 | < 2.9.6+dfsg-1ubuntu0.1~esm1 | < 2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm1 | All versions (No fix recorded)
4 vendors · 9 products
References
23 links
- github.com/ansible/ansiblePACKAGE