Loki
Vendor:
First CVE: Aug 3, 2021 · Active for 4 years
3
Total CVEs
More Total CVEs than 68% of tracked products
1.5
Avg CVEs / Year
Higher CVE frequency than 59% of tracked products
6.0
Avg CVSS
Higher Avg CVSS than 24% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Loki over time
Volume of CVEsAvg CVSS Base Score
First CVE
Aug 3, 2021
4 years ago
Most Recent CVE
Jul 16, 2026
12 days ago
CVE Severity & Scoring
Loki3 CVEs
67%
33%
All CVEs353,173 CVEs
45%
40%
11%
MediumHigh
Attack Vector
Local0 (0.0%)
Network3 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low3 (100.0%)
High0 (0.0%)
Unknown0 (0.0%)
User Interaction
None3 (100.0%)
Unknown0 (0.0%)
Required0 (0.0%)
Privileges Required
Low0 (0.0%)
High0 (0.0%)
None3 (100.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (3 CVEs).
3 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-21729HIGH Loki queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy. | Jul 16, 2026 | 7.5 | 33 | NO | NO |
CVE-2021-36156MEDIUM An issue was discovered in Grafana Loki through 2.2.1. The header value X-Scope-OrgID is used to construct file paths for rules files, and if crafted to conduct directory traversal | Aug 3, 2021 | 5.3 | 21 | NO | NO |
CVE-2026-21726MEDIUM The CVE-2021-36156 fix validates the namespace parameter for path traversal sequences after a single URL decode, by double encoding, an attacker can read files at the Ruler API end | Apr 15, 2026 | 5.3 | 19 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (3 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (3 CVEs).
Media Mentions
Signals from CVEs in this product scope (3 CVEs).
Top CNAs Publishing CVEs For Loki
Top CWEs
Versions
No cataloged versions.