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No exploitation reportedFix available

CVE-2018-10855

No exploitation reported by the sources we read.

  • Published2018-07-03
  • Fixed in2.5.5 · 2.4.5.0
  • WeaknessCWE-532

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Ansible 2.5 prior to 2.5.5, and 2.4 prior to 2.4.5, do not honor the no_log task flag for failed tasks. When the no_log flag has been used to protect sensitive data passed to a task from being logged, and that task does not run successfully, Ansible will expose sensitive data in log files and on the terminal of the user running Ansible.

Timeline

dates in UTC
  1. 2018-07-0301:29CVE publishedNVD

Versions per branch

OSV · NVD
ansible
BranchAffectedFixed in
2.5≥ 2.5.0a1, < 2.5.52.5.5
2.5≥ 2.5, < 2.5.52.5.5
2.4≥ 2.4.0.0, < 2.4.5.02.4.5.0
2.4≥ 2.4, < 2.4.5.02.4.5.0
Canonical ubuntu linux
BranchAffectedFixed in
16.4= 16.04no fix published
18.4= 18.04no fix published
19.4= 19.04no fix published
Redhat ansible engine
BranchAffectedFixed in
2.4≥ 2.4, < 2.4.52.4.5
2.5> 2.5, ≤ 2.5.5no fix published
2.0= 2.0no fix published

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • ansibleUbuntu:18.04:LTSall versions · fixed in 2.5.1+dfsg-1ubuntu0.1
  • ansibleUbuntu:16.04:LTSall versions · fixed in 2.0.0.2-2ubuntu1.3
  • ansibleSUSE:Package Hub 15all versions · fixed in 2.7.6-bp150.3.3.1
  • ansibleSUSE:OpenStack Cloud Crowbar 8all versions · fixed in 2.4.6.0-3.3.1
  • ansibleSUSE:OpenStack Cloud 8all versions · fixed in 2.4.6.0-3.3.1
  • ansibleSUSE:HPE Helion OpenStack 8all versions · fixed in 2.4.6.0-3.3.1
  • ansibleRed Hat:openstack:13::el7all versions · fixed in 0:2.4.6.0-1.el7ae
  • ansibleRed Hat:openstack:12::el7all versions · fixed in 0:2.4.6.0-1.el7ae

25 more package ranges on OSV.dev

Full record on NVD

Fix

  1. Update ansible to 2.5.5 · 2.4.5.0

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.15.9read 2026-10-23
  • CNACVSS 3.05.9known since 2026-10-23
  • NVDCVSS 2.04.3read 2026-10-23
  • CNAweakness (CWE)CWE-532known since 2026-10-23
  • NVDweakness (CWE)CWE-532read 2026-10-23
  • FIRST EPSSEPSS score3.0 %2026-11-09
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2020-06-16

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2018-07-03
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-jwcc-j78w-j73w

Frequently asked questions

What is CVE-2018-10855?

Ansible 2.5 prior to 2.5.5, and 2.4 prior to 2.4.5, do not honor the no_log task flag for failed tasks. When the no_log flag has been used to protect sensitive data passed to a task from being logged, and that task does not run successfully, Ansible will expose sensitive data in log files and on the terminal of the user running Ansible.

Is CVE-2018-10855 actively exploited?

Active exploitation of CVE-2018-10855 has not been confirmed. Its EPSS score was 3.0% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-10855?

CVE-2018-10855 has a CVSS v3 base score of 5.9 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

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