UpHeron
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Servers and applications

CVE-2017-1000391

Jenkins versions 2.88 and earlier and 2.73.2 and earlier stores metadata related to 'people', which encompasses actual user accounts, as well as users appearing in SCM, in directories corresponding to the user ID on disk. These directories used the user ID for their name without additional escaping, potentially resulting in problems like overwriting of unrelated configuration files.

Severity
High 7.3
Published
26 Jan 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.5% in the next 30 daysHigher than 74% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · Needs a user account · Needs someone to click or open something
Attacker can
Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
JenkinsServers and applications · cpe:a:jenkins:jenkins
  • Every version up to 2.73.2
  • Every version up to 2.88

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-1000391
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-1000391