CVE-2026-27876

CRITICALPre-NVD 9.19.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-03-27. The CNA's CVSS baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-16634 (ENISA EUVD) · GHSA-736h-475m-xhjc (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (the SSVC decision on this page).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 2.0%CVSS: 9.1Exploit: Public PoCExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (Grafana Labs) lists Grafana versions 11.6.0 up to but not including 11.6.14, 12.0.0 up to but not including 12.1.10, 12.2.0 up to but not including 12.2.8, 12.3.0 up to but not including 12.3.6 and 1 more range as affected. No release containing a fix is confirmed on record.

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.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
57
EG Risk 57/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
2.0%
EPSS %ILE
80th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
2.0% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

March 27, 2026

Last Modified

August 27, 2026

Advisory Details (1)

Auto-updated Sep 15, 2026
No fix on record yet.
Web page

RCE on Grafana via sqlExpressions | Grafana Labs

https://grafana.com/security/security-advisories/cve-2026-27876

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 77× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 97 of 332 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 3 repeat rows among the latest 100 are merged into the row they repeat. The 235 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 17:47 UTCEG score recompute
  2. 2026-11-01 17:47 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-11-01 16:34 UTCEPSS rescoreEPSS 2.0% · 80th percentile
  4. 2026-10-31 17:18 UTCEG score recompute
  5. 2026-10-31 17:17 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  6. 2026-10-31 16:32 UTCEPSS rescoreEPSS 2.0% · 80th percentile
  7. 2026-10-30 16:51 UTCEG score recompute
  8. 2026-10-30 16:51 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  9. 2026-10-30 16:34 UTCEPSS rescoreEPSS 2.0% · 80th percentile
  10. 2026-10-29 16:33 UTCEPSS rescoreEPSS 2.0% · 80th percentile
  11. 2026-10-29 16:25 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-10-29 05:42 UTCEG score recompute
  13. 2026-10-29 05:41 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  14. 2026-10-28 16:32 UTCEPSS rescoreEPSS 2.0% · 80th percentile
  15. 2026-10-28 05:15 UTCEG score recompute
  16. 2026-10-28 05:15 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  17. 2026-10-27 16:31 UTCEPSS rescoreEPSS 2.0% · 80th percentile
  18. 2026-10-27 04:48 UTCEG score recompute
  19. 2026-10-27 04:48 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  20. 2026-10-26 16:31 UTCEPSS rescoreEPSS 2.0% · 80th percentile
  21. 2026-10-26 00:01 UTCEG score recompute
  22. 2026-10-26 00:01 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  23. 2026-10-25 16:32 UTCEPSS rescoreEPSS 2.0% · 80th percentile
  24. 2026-10-25 14:38 UTCEG score recompute
  25. 2026-10-24 23:35 UTCEG score recompute
Show 72 more
  1. 2026-10-24 23:35 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  2. 2026-10-24 16:32 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  3. 2026-10-23 23:09 UTCEG score recompute
  4. 2026-10-23 23:09 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  5. 2026-10-23 16:31 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  6. 2026-10-22 22:42 UTCEG score recompute
  7. 2026-10-22 22:42 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  8. 2026-10-22 16:34 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  9. 2026-10-21 22:10 UTCEG score recompute
  10. 2026-10-21 22:10 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  11. 2026-10-21 16:32 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  12. 2026-10-20 21:42 UTCEG score recompute
  13. 2026-10-20 21:42 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  14. 2026-10-20 16:32 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  15. 2026-10-19 21:16 UTCEG score recompute
  16. 2026-10-19 21:15 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  17. 2026-10-19 16:31 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  18. 2026-10-18 20:10 UTCEG score recompute
  19. 2026-10-18 20:10 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  20. 2026-10-18 16:31 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  21. 2026-10-18 03:50 UTCEG score recompute
  22. 2026-10-17 19:44 UTCEG score recompute
  23. 2026-10-17 19:44 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  24. 2026-10-17 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  25. 2026-10-16 19:17 UTCEG score recompute
  26. 2026-10-16 19:16 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  27. 2026-10-16 16:41 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  28. 2026-10-15 16:43 UTCEG score recompute
  29. 2026-10-15 16:43 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  30. 2026-10-15 16:31 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  31. 2026-10-14 16:32 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  32. 2026-10-14 10:45 UTCEG score recompute
  33. 2026-10-14 10:45 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  34. 2026-10-13 16:34 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  35. 2026-10-13 09:16 UTCEG score recompute
  36. 2026-10-13 09:16 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  37. 2026-10-12 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  38. 2026-10-12 16:17 UTCEG score recompute
  39. 2026-10-12 08:49 UTCGHSA enrichmentGHSA-736h-475m-xhjc · GitHub severity CRITICAL · GitHub CVSS 9.1
  40. 2026-10-11 19:59 UTCEG score recompute
  41. 2026-10-11 17:12 UTCEG score recompute
  42. 2026-10-11 14:43 UTCEG score recompute
  43. 2026-10-11 13:48 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  44. 2026-10-10 20:00 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  45. 2026-10-09 20:07 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  46. 2026-10-08 17:11 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  47. 2026-10-07 23:47 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  48. 2026-10-06 15:17 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  49. 2026-10-05 17:42 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  50. 2026-10-05 11:16 UTCOSV refresh
  51. 2026-10-04 23:21 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  52. 2026-10-03 14:25 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  53. 2026-10-01 19:49 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  54. 2026-09-30 15:03 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  55. 2026-09-28 13:51 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  56. 2026-09-26 15:58 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  57. 2026-09-26 00:26 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  58. 2026-09-20 20:15 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  59. 2026-09-18 19:27 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  60. 2026-09-17 19:30 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  61. 2026-09-16 14:08 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  62. 2026-09-16 05:15 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  63. 2026-09-15 18:54 UTCOSV refresh
  64. 2026-09-13 16:47 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  65. 2026-09-12 15:01 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  66. 2026-09-11 14:52 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  67. 2026-09-10 09:34 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  68. 2026-09-08 22:00 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  69. 2026-09-07 16:01 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  70. 2026-09-06 13:47 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  71. 2026-09-04 05:06 UTCEPSS rescoreEPSS 1.9% · 78th percentile
  72. 2026-09-02 14:11 UTCEPSS rescoreEPSS 1.9% · 78th percentile

Publicly available exploits

(2 references)

Public exploit code is referenced for this CVE (2 GitHub PoCs). No fix is confirmed yet, so defenders should restrict or isolate affected systems accordingly until one is published.

  • GitHub PoC0xBlackash/CVE-2026-27876
    Published Mar 30, 2026

    CVE-2026-27876

    Open source ↗
  • GitHub PoC0xredash/CVE-2026-27876
    Published Mar 30, 2026

    CVE-2026-27876

    Open source ↗

Frequently asked(5)

What is CVE-2026-27876?
CVE-2026-27876 is a critical-severity vulnerability; its CVE record was published on March 27, 2026. 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…
When was CVE-2026-27876 made public?
CVE-2026-27876 was made public on March 27, 2026: that is the date its CVE record's CNA, Grafana Labs, gives for when the vulnerability was made public. The CVE record itself was published on March 27, 2026. EchelonGraph's copy of the record carries a last-modified date of August 27, 2026; the record at its source may have been updated since.
Is CVE-2026-27876 actively exploited?
CVE-2026-27876 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.0% probability of exploitation in the next 30 days (80th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-27876?
CVE-2026-27876 has a CVSS base score of 9.1 (the CNA's own assessment, by grafana; NVD's own analysis pending).
How do I remediate CVE-2026-27876?
No fix for CVE-2026-27876 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (Grafana Labs) lists Grafana versions 11.6.0 up to but not including 11.6.14, 12.0.0 up to but not including 12.1.10, 12.2.0 up to but not including 12.2.8, 12.3.0 up to but not including 12.3.6 and 1 more range as affected. No release containing a fix is confirmed on record.

Dependency Blast Radius

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