PT-2026-60405 · Grafana · Loki

Published 2026-07-16 · Updated 2026-07-16 · CVE-2026-21729

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Loki (affected versions not specified)

Description Queries with large limits can trigger excessive memory allocations, potentially leading to a denial of service by impacting the availability of the service depending on the deployment strategy.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-21729

Affected Products

Loki

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-21729 · Security Note
• https://grafana.com/security/security-advisories/cve-2026-21729 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/2077623676464246851 · Twitter Post