CVE-2018-16876

ansible before versions 2.5.14, 2.6.11, 2.7.5 is vulnerable to a information disclosure flaw in vvv+ mode with no_log on that can lead to leakage of sensible data.

Published: 2019-01-03 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-16876 is rated Moderate Risk (51.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.46%). EPSS rose +1.23% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-16876

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.24% 2.46% +1.23%
2 2026-05-29 0.78% 1.24% +0.45%
3 2026-04-21 — 0.78% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-16876

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.6 3.6 [email protected]
3.1 3.0 LOW
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.6 1.4 [email protected]
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2018-16876

GitHub Security Advisory for CVE-2018-16876

GHSA-j569-fghw-f9rx · Severity: high · Ecosystem: pip — Ansible sensitive information disclosure

OS Trackers for CVE-2018-16876

vendor priority summary link
alpine medium CVE-2018-16876: 2 source package rows (ansible, ansible-base); 5 state rows across 5 repos (3.10-main, 3.11-main, 3.12-main, edge-community, edge-main); fixed 5, open 0. https://security.alpinelinux.org/vuln/CVE-2018-16876
debian not yet assigned CVE-2018-16876 not yet assigned priority: Debian including 1 source packages (ansible), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-16876
redhat medium — https://access.redhat.com/security/cve/CVE-2018-16876
suse low CVE-2018-16876 severity low: SUSE including 118 source package names (ansible, ansible-10-10.6.0-1.1, …), 246 product×package rows across 12 product lines (HPE Helion OpenStack 8, SUSE Linux Enterprise Server 11 SP3-TERADATA, … (12 product lines)): Fixed 245, Known Not Affected 1. https://www.suse.com/security/cve/CVE-2018-16876/
ubuntu medium CVE-2018-16876 medium priority: Ubuntu including 1 source packages (ansible), 6 status rows across 6 suites (bionic, cosmic, disco, trusty, upstream, xenial): not-affected 3, ignored 1, needed 1, released 1. https://ubuntu.com/security/CVE-2018-16876

Affected software / configurations for CVE-2018-16876

Vendor Product Version Raw CPE
redhat ansible >= 2.5.0, < 2.5.14 cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
redhat ansible >= 2.6.0, < 2.6.11 cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
redhat ansible >= 2.7.0, < 2.7.5 cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
redhat ansible_engine 2.0 cpe:2.3:a:redhat:ansible_engine:2.0:*:*:*:*:*:*:*
redhat ansible_engine 2.5 cpe:2.3:a:redhat:ansible_engine:2.5:*:*:*:*:*:*:*
redhat ansible_engine 2.6 cpe:2.3:a:redhat:ansible_engine:2.6:*:*:*:*:*:*:*
redhat ansible_engine 2.7 cpe:2.3:a:redhat:ansible_engine:2.7:*:*:*:*:*:*:*
redhat openstack 14 cpe:2.3:a:redhat:openstack:14:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
suse package_hub — cpe:2.3:a:suse:package_hub:-:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 19.04 cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*

References for CVE-2018-16876

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00021.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00077.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00020.html Third Party Advisory
http://www.securityfocus.com/bid/106225 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:3835 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3836 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3837 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3838 Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:0564 Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:0590 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16876 Issue Tracking Patch Vendor Advisory
https://github.com/ansible/ansible/pull/49569 Patch Third Party Advisory
https://usn.ubuntu.com/4072-1/ Third Party Advisory
https://www.debian.org/security/2019/dsa-4396 Third Party Advisory
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