UpHeron
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Servers and applications

CVE-2018-1999045

A improper authentication vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in SecurityRealm.java, TokenBasedRememberMeServices2.java that allows attackers with a valid cookie to remain logged in even if that feature is disabled.

Severity
Medium 5.4
Published
23 Aug 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.9% in the next 30 daysHigher than 59% of CVEs. EPSS by FIRST, 10 Nov 2026
Weakness
Improper authentication (CWE-287)
Attack
Over the network · Needs a user account · No user action needed
Attacker can
Read some data · Change some data
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Sources
NVD

Affected software

SoftwareAffected versions
JenkinsServers and applications · cpe:a:jenkins:jenkins
  • Every version up to 2.121.2
  • Every version up to 2.137

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-1999045
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-1999045