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Fencer Vulns
high 8.8

CVE-2026-15815 json

CVE-2026-15815 CVE Record

published 2026-09-17 52 d ago modified 2026-09-25 45 d ago also BIT-grafana-2026-15815 , EUVD-2026-82472

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

Grafana OSS and Grafana Enterprise did not safely resolve symbolic links when extracting plugin archives. A crafted plugin archive can chain relative symbolic link entries to escape the plugin installation directory, writing arbitrary files and an executable backend binary outside that directory. The dropped executable runs with the privileges of the Grafana server process, resulting in remote code execution.

Plugin archives are extracted before their signature is verified, so a valid plugin signature does not prevent the write. An operator can therefore be affected by installing a plugin that appears legitimate, as well as by installing a plugin from an arbitrary archive using grafana-cli, the GF_INSTALL_PLUGINS environment variable, or preinstall configuration.

Grafana Enterprise is affected because it includes the same plugin extraction code as Grafana OSS.

Patch / fix

  • bitnami grafana 12.0.1, 12.1.1, 12.2.1, 12.3.1, 12.4.11, 13.0.9, 13.1.6, 13.2.2
  • grafana RHEL 8 9.2.10-35.el8_10
  • grafana-selinux RHEL 8 9.2.10-35.el8_10

red hat advisories RHSA-2026:83544

  • grafana openSUSE Tumbleweed 12.4.11-1.1

opensuse advisories openSUSE-SU-2026:11920-1

  • grafana AlmaLinux 8 9.2.10-35.el8_10
  • grafana-selinux AlmaLinux 8 9.2.10-35.el8_10

almalinux advisories ALSA-2026:83544

  • grafana Rocky Linux 8 9.2.10-35.el8_10

rocky linux advisories RLSA-2026:83544

  • grafana Alpine 3.24 12.4.14-r0

alpine advisories ALPINE-CVE-2026-15815

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-15815 updated cvss 8.8

grafana: PLUGIN ARCHIVE EXTRACTION ESCAPES THE PLUGIN DIRECTORY, ALLOWING CODE EXECUTION

  • Red Hat Enterprise Linux 9 grafana, grafana-selinux Red Hat Enterprise Linux 10 grafana
    affected: workaround, no fix available
  • Red Hat Ceph Storage 7 rhceph/grafana-rhel9 Red Hat Ceph Storage 8 rhceph/grafana-rhel9 Red Hat Ceph Storage 9 rhceph/grafana-rhel10
    under investigation
  • Red Hat Multicluster Global Hub 1.7.4 multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1793002792
    fixed: vendor fix RHSA-2026:95517
  • Red Hat Advanced Cluster Management for Kubernetes 2.13 rhacm2/acm-grafana-rhel9 1792865487
    fixed: vendor fix RHSA-2026:92307
  • Red Hat Enterprise Linux AppStream (v. 8) grafana 9.2.10-35.el8_10, grafana-selinux 9.2.10-35.el8_10
    fixed: vendor fix RHSA-2026:83544
  • Red Hat Multicluster Global Hub 1.7.4 multicluster-globalhub/multicluster-globalhub-agent-rhel9 1792971214, multicluster-globalhub/multicluster-globalhub-manager-rhel9 1792971204, multicluster-globalhub/multicluster-globalhub-rhel9-operator 1793057598, multicluster-globalhub/multicluster-globalhub-operator-bundle 1793081711, multicluster-globalhub/multicluster-globalhub-postgres-exporter-rhel9 1793057536 Red Hat Advanced Cluster Management for Kubernetes 2.13 rhacm2/thanos-rhel9 1792872550, rhacm2/acm-cli-rhel9 1792972427, rhacm2/console-rhel9 1792883111, rhacm2/prometheus-rhel9 1792853139, rhacm2/acm-search-v2-rhel9 1792847370, rhacm2/node-exporter-rhel9 1792872412, +37 more Red Hat Hardened Images hi/grafana, grafana12.4, grafana13.1, grafana13.2
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
52 d ago

Exploit prediction

0.69% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
OSV 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
bitnami grafana
>=11.6.0, <12.0.1
>=12.1.0, <12.1.1
>=12.2.0, <12.2.1
>=12.3.0, <12.3.1
>=12.4.0, <12.4.11
>=13.0.0, <13.0.9
>=13.1.0, <13.1.6
>=13.2.0, <13.2.2
12.0.1
12.1.1
12.2.1
12.3.1
12.4.11
13.0.9
13.1.6
13.2.2

Affected products

  • Grafana Grafana OSS
  • Grafana Grafana Enterprise

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access
  • CWE-94 Improper Control of Generation of Code
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.