CVE-2026-21729Disclosure

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Loki queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy.

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0.0/ 10 priority

Sources & remediation

Other references

https://grafana.com/security/security-advisories/cve-2026-21729

Weakness type (CWE)

CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

2 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 1 signal
Disclosure: 2 classified signals
Peaked 1d ago at 1 mentions (2026-07-16); latest day: 1
2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

CERT-PY@CERTpy78d
Disclosure
⚠️ Vulnerabilidades en productos Grafana ❗ CVE-2026-21729 ❗ CVE-2026-15583 ➡️ Más info: https://www.cert.gov.py/vulnerabilidades-en-productos-grafana-4/ https://t.co/Qle6GZIWWb
Post summary
The tweet announces two CVE identifiers affecting Grafana products and links to a CERT site for further information.
00030243
6.7K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds91d
Disclosure
CVE-2026-21729 Denial of Service via Large Memory Allocation in Loki Queries https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-21729
Post summary
A new CVE (CVE‑2026‑21729) has been announced for Loki, describing a denial‑of‑service flaw caused by large memory allocations in queries, with no PoC, exploit, patch, or active exploitation reported.
00000117
4.1K followersView on X

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