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Public proof of conceptFix available

CVE-2018-15727

A public proof of concept exists; no exploitation attested.

  • Published2018-08-29
  • Fixed in5.2.3 · 5.2.3+incompatible · 4.6.4 · 4.6.4+incompatible
  • WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2018-08-2915:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-15727?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-15727?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Grafana
BranchAffectedFixed in
5.x≥ 5.0.0, < 5.2.35.2.3
5.x≥ 5.0.0+incompatible, < 5.2.3+incompatible5.2.3+incompatible
4.x≥ 4.0.0, < 4.6.44.6.4
4.6< 4.6.44.6.4
4.6< 4.6.4+incompatible4.6.4+incompatible
2.x≥ 2.0.0, ≤ 2.1.2no fix published
3.x≥ 3.0.0, ≤ 3.1.1no fix published
Redhat ceph storage
BranchAffectedFixed in
3.0= 3.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • ardana-ansibleSUSE:OpenStack Cloud 8all versions · fixed in 8.0+git.1566374355.c509923-3.67.3
  • ardana-ansibleSUSE:HPE Helion OpenStack 8all versions · fixed in 8.0+git.1566374355.c509923-3.67.3
  • ardana-glanceSUSE:OpenStack Cloud 8all versions · fixed in 8.0+git.1566376789.be0fe01-3.17.3
  • ardana-glanceSUSE:HPE Helion OpenStack 8all versions · fixed in 8.0+git.1566376789.be0fe01-3.17.3
  • ardana-horizonSUSE:OpenStack Cloud 8all versions · fixed in 8.0+git.1565816064.5d4f73f-3.18.3
  • ardana-horizonSUSE:HPE Helion OpenStack 8all versions · fixed in 8.0+git.1565816064.5d4f73f-3.18.3
  • ardana-input-modelSUSE:OpenStack Cloud 8all versions · fixed in 8.0+git.1566517401.98450e6-3.33.3
  • ardana-input-modelSUSE:HPE Helion OpenStack 8all versions · fixed in 8.0+git.1566517401.98450e6-3.33.3

165 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-15727 Red Hat Product Security20 products fixed · 4 known affected

    grafana: authentication bypass knowing only a username of an LDAP or OAuth user

    grafana as a component of Red Hat Ceph Storage 2 · grafana.src as a component of Red Hat Ceph Storage 2 · grafana.src as a component of Red Hat OpenStack Platform 8 (Liberty) Operational Tools · +1 more

  • RHSA-2019:0019 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: grafana security and bug fix update

  • RHSA-2018:3829 Red Hat Product Security18 products fixed

    Red Hat Security Advisory: RHGS WA security and bug fix update

Full record on NVD

Fix

  1. Update Grafana to 5.2.3 · 5.2.3+incompatible · 4.6.4 · 4.6.4+incompatible
  2. Vendor fix Red Hat Product Security RHSA-2019:0019 · 2 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  3. Workaround from the vendor Red Hat Product Security RHSA-2019:0019 · 2 productsAs per upstream (https://grafana.com/blog/2018/08/29/grafana-5.2.3-and-4.6.4-released-with-important-security-fix) * Switch to authentication mechanism other than LDAP or OAuth * Grafana should be isolated from public networks
  4. No fix planned, says the vendor Red Hat Product Security CVE-2018-15727 · 4 productsWill not fix

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedu238/grafana-CVE-2018-15727
PoC-in-GitHub
Metasploit modules
1 moduleauxiliary/admin/http/grafana_auth_bypassrank: normalModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2018-08-29
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-rgjg-66cx-5x9m

Frequently asked questions

What is 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.

Is CVE-2018-15727 actively exploited?

Active exploitation of CVE-2018-15727 has not been confirmed. Its EPSS score was 63.1% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-15727?

CVE-2018-15727 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record