CVE-2026-27878

mediumpriority · track · 0EPSS 0.004 · 34 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.41% (34th) EPSS

CVSS 6.5 · medium

Is it mine?

19 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-23

A TraceQL query in Grafana Tempo with a large exemplars hint value can cause the Tempo instance to allocate an excessive amount of memory, resulting in an out-of-memory crash. This could allow an authenticated user to trigger a denial of service against the Tempo service.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · security@grafana.comexploitability 2.8 · impact 3.6

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USCWE-400USCWE-400US

affected products (19)

Products and version ranges known to be affected.

Grafana Tempo <2.10.2all versionscert_bundDE
Grafana Tempo <2.8.4all versionscert_bundDE
Grafana Tempo <2.8.8all versionscert_bundDE
Grafana Tempo <2.9.2all versionscert_bundDE
Grafana Tempo< 2.10.2cert_bundDE
Grafana Tempo< 2.8.4cert_bundDE
Grafana Tempo< 2.8.8cert_bundDE
Grafana Tempo< 2.9.2cert_bundDE
Grafana Enterprise Traces (GET)2.6.1 → 2.8.8enisa_euvdEU
Grafana Tempo2.6.0 → 2.10.2enisa_euvdEU
Grafana Labs Grafana Tempo2.10.0 → 2.10.2fstec_bduRU
Grafana Labs Grafana Tempo2.6.0 → 2.8.4fstec_bduRU
Grafana Labs Grafana Tempo2.9.0 → 2.9.2fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 8.0fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
grafana tempo2.10.0 → 2.10.2nvdUScpe:2.3:a:grafana:tempo:*:*:*:*:*:*:*:*
grafana tempo2.6.0 → 2.8.4nvdUScpe:2.3:a:grafana:tempo:*:*:*:*:*:*:*:*
grafana tempo2.9.0 → 2.9.2nvdUScpe:2.3:a:grafana:tempo:*:*:*:*:*:*:*:*
Go github.com/grafana/tempo< 1.5.1-0.20260303204923-b13f74291d48osvUSpkg:golang/github.com/grafana/tempo

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2342Grafana Tempo: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2026-07-14csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Grafana Tempo ausnutzen, um einen Denial of Service Angriff durchzuführen.
GHSA-6xff-cpcq-vpw2Grafana Tempo vulnerable to an out-of-memory crash2026-06-19ghsa · osvUS
A TraceQL query in Grafana Tempo with a large exemplars hint value can cause the Tempo instance to allocate an excessive amount of memory, resulting in an out-of-memory crash. This could allow an authenticated user to trigger a denial of service against the Tempo service.
GO-2026-6325Grafana Tempo vulnerable to an out-of-memory crash in github.com/grafana/tempo2026-09-02vendor · osvUS
Grafana Tempo vulnerable to an out-of-memory crash in github.com/grafana/tempo

also known as (7)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund nvd NVD CVE.org MITRE

published 2026-06-19modified 2026-07-10

references (3)

External citations — patches, advisories, analysis.

scry

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