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CVE-2014-4657

Ansible Remote Code Execution

9.8 CriticalFix available

The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

4.43%Up 2.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 9.8

The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions.

Record
CVE-2014-4657
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions.

Record
CVE-2014-4657
Updated
2026-11-02
EUVDEUVD-2020-0010 No score

The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions.

Record
EUVD-2020-0010
Updated
2026-11-03
GitHub AdvisoriesGHSA-qg47-5px9-32g7 9.3

Ansible Remote Code Execution

The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions.

Record
GHSA-qg47-5px9-32g7
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSV 9.8

The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions.

Record
CVE-2014-4657
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2014-4657 9.8

The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions.

Record
DEBIAN-CVE-2014-4657
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-qg47-5px9-32g7 9.3

Ansible Remote Code Execution

The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions.

Record
GHSA-qg47-5px9-32g7
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSVPYSEC-2020-199 No score

The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrary code via crafted instructions.

Record
PYSEC-2020-199
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ansible
PyPI
 before 1.5.4
1.5.4
ansible
Debian:12
 before 1.5.5+dfsg-1
1.5.5+dfsg-1
ansible
Debian:13
 before 1.5.5+dfsg-1
1.5.5+dfsg-1
ansible
Debian:14
 before 1.5.5+dfsg-1
1.5.5+dfsg-1
ansible
PyPI
 before 1.5.4, plus listed versions
1.01.11.21.2.11.2.2
Show 16 moreShow less
1.2.31.3.01.3.11.3.21.3.31.3.41.41.4.11.4.21.4.31.4.41.4.51.51.5.11.5.21.5.3
1.5.4

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2014-4657 is a critical vulnerability (CVSS 9.8) in Redhat Ansible, published February 20, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.43%, the 91st percentile. Fixed in ansible 1.5.4.

References

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