CVE-2021-27019

PuppetDB logging included potentially sensitive system information.

Published: 2021-08-30 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2021-27019 is rated Low Risk (34.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.71%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2021-27019

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 0.20% 0.71% +0.51%
2 2025-03-30 0.31% 0.20% -0.11%
3 2025-03-29 0.31%

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-27019

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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.
2.8 1.4 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/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:L)
Exploitation conditions are straightforward and predictable.
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.
8.0 2.9 [email protected]

Weakness enumeration for CVE-2021-27019

OS Trackers for CVE-2021-27019

vendor priority summary link
debian not yet assigned CVE-2021-27019 not yet assigned priority: Debian including 1 source packages (puppetdb), 3 status rows across 3 suites (bookworm, sid, trixie): resolved 3. https://security-tracker.debian.org/tracker/CVE-2021-27019
ubuntu medium CVE-2021-27019 medium priority: Ubuntu including 1 source packages (puppetdb), 15 status rows across 15 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 7, DNE 4, needs-triage 4. https://ubuntu.com/security/CVE-2021-27019

Affected software / configurations for CVE-2021-27019

Vendor Product Version Raw CPE
puppet puppet_enterprise < 2019.8.6 cpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:*
puppet puppetdb >= 6.0.0, < 6.16.1 cpe:2.3:a:puppet:puppetdb:*:*:*:*:*:*:*:*
puppet puppetdb >= 7.0.0, < 7.3.1 cpe:2.3:a:puppet:puppetdb:*:*:*:*:*:*:*:*

References for CVE-2021-27019

cvelogic Threat Intelligence