UpHeron
All vulnerabilities

Servers and applications

CVE-2018-15727

Grafana 2.x, 3.x, and 4.x before 4.6.4 and 5.x before 5.2.3 allows authentication bypass because an attacker can generate a valid "remember me" cookie knowing only a username of an LDAP or OAuth user.

Severity
Critical 9.8
Published
29 Aug 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.6.4, 5.2.3
Exploit chance
63% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 10 Nov 2026
Weakness
Improper authentication (CWE-287)
Attack
Over the network · No login needed · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
GrafanaServers and applications · cpe:a:grafana:grafana
  • From 2.0.0 up to 2.1.2
  • From 3.0.0 up to 3.1.1
  • From 4.0.0 before 4.6.4
  • From 5.0.0 before 5.2.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-15727
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-15727