Public proof of conceptFix available

CVE-2026-27876

Q: Is CVE-2026-27876 actively exploited?

A proof-of-concept exploit exists for CVE-2026-27876, but active exploitation has not been confirmed at this time.

Q: What is the CVSS score for CVE-2026-27876?

CVE-2026-27876 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2026-03-27
Fixed in12.4.0 · 12.3.0 · 12.2.0 · 12.0.0 · 11.6.0
WeaknessCWE-89 · CWE-94

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

A chained attack via SQL Expressions and a Grafana Enterprise plugin can lead to a remote arbitrary code execution impact (RCE). This is enabled by a feature in Grafana (OSS), so all users are always recommended to update to avoid future attack vectors going this path. Only instances with the sqlExpressions feature toggle enabled are vulnerable. Only instances in the following version ranges are affected: - 11.6.0 (inclusive) to 11.6.14 (exclusive): 11.6.14 has the fix. 11.5 and below are not affected. - 12.0.0 (inclusive) to 12.1.10 (exclusive): 12.1.10 has the fix. 12.0 did not receive an update, as it is end-of-life. - 12.2.0 (inclusive) to 12.2.8 (exclusive): 12.2.8 has the fix. - 12.3.0 (inclusive) to 12.3.6 (exclusive): 12.3.6 has the fix. - 12.4.0 (inclusive) to 12.4.2 (exclusive): 12.4.2 has the fix. 13.0.0 and above also have the fix: no v13 release is affected.

Timeline

dates in UTC

2026-03-2715:16CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 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-2026-27876?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-27876?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

Branch	Affected	Fixed in	Source
12.x	≥ 12.3.6, < 12.4.0	12.4.0	NVD
12.x	≥ 12.2.8, < 12.3.0	12.3.0	NVD
12.x	≥ 12.1.10, < 12.2.0	12.2.0	NVD
12.0	≥ 11.6.14, < 12.0.0	12.0.0	NVD
11.6	< 11.6.0	11.6.0	NVD

grafana

Branch	Affected	Fixed in	Source
12.4	≥ 12.4.0, < 12.4.2	12.4.2	OSV
12.3	≥ 12.3.0, < 12.3.6	12.3.6	OSV
12.2	≥ 12.2.0, < 12.2.8	12.2.8	OSV
12.x	≥ 12.0.0, < 12.1.10	12.1.10	OSV
11.6	≥ 11.6.0, < 11.6.14	11.6.14	OSV

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

Fix

Update Grafana to 12.4.0 · 12.3.0 · 12.2.0 · 12.0.0 · 11.6.0

Advisories and patches

grafana.comVendor Advisory

Detection

read 2026-10-23 19:25 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 2 repositories, unverified0xBlackash/CVE-2026-27876atiilla/CVE-2026-27876

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionpoc2026-03-27
OpenCVESSVC decisionpoc—
CNACVSS 3.19.1read 2026-10-23
CISA-ADPweakness (CWE)CWE-942026-03-27
CNAweakness (CWE)CWE-89read 2026-10-23
FIRST EPSSEPSS score1.4 %2026-10-22
PoC-in-GitHubproof of concept2read 2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published: 2026-03-27
Last Modified: 2026-07-15
NVD status: Modified

Frequently asked questions

What is CVE-2026-27876?

Is CVE-2026-27876 actively exploited?

A proof-of-concept exploit exists for CVE-2026-27876, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-27876?

CVE-2026-27876 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

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