CVE-2026-21728

highpriority · track · 0EPSS 0.006 · 50 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.64% (50th) EPSS
CVSS 7.5 · high
Is it mine?
31 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

Tempo queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy. Mitigation can be done by setting max_result_limit in the search config, e.g. to 262144 (2^18). Alternatively, automatically restart the service.

01

cvss

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

7.5
010

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

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · security@grafana.comexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV
02

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USCWE-400USCWE-400USCWE-770USCWE-770US
04

affected products (31)

Products and version ranges known to be affected.

showing 20 of 31
05

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-p4r4-xvrq-gvmcGrafana Tempo has an Uncontrolled Resource Consumption issue2026-04-24ghsa · osvUS

    Tempo queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy. Mitigation can be done by setting max_result_limit in the search config, e.g. to 262144 (2^18).

  • GO-2026-5528Grafana Tempo has an Uncontrolled Resource Consumption issue in github.com/grafana/tempo2026-06-25vendor · osvUS

    Grafana Tempo has an Uncontrolled Resource Consumption issue in github.com/grafana/tempo. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/grafana/tempo before v2.8.4, from v2.9.0 before v2.9.2, from v2.10.0 before v2.10.2.

06

also known as (12)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bduosvcert_bundNVDCVE.orgMITRE
published 2026-04-24modified 2026-10-26
08

references (11)

External citations — patches, advisories, analysis.

scry

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