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CVE-2021-41090

25
FAUCET Score

CVE-2021-41090 affects Grafana Agent versions prior to 0.20.1 and 0.21.2, where inline secrets within metrics instance configurations are exposed in plaintext via specific API endpoints. This vulnerability carries a CVSS score of 7.5 (HIGH) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, allowing unauthenticated access to sensitive credentials if HTTPS with client authentication is not configured. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.14.0, < 0.20.1CPE matchmatch criteria
cpe:2.3:a:grafana:agent:*:*:*:*:*:*:*:*
>= 0.21.0, < 0.21.2CPE matchmatch criteria
cpe:2.3:a:grafana:agent:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
50.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 26th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/grafana/agentFixed in: 0.21.2

Vendor Advisories (1)

goGHSA-9c4x-5hgq-q3whmedium

Instance config inline secret exposure in Grafana

Dec 8, 2021

References

github.com / grafana/agent/commit/af7fb01e31fe2d389e5f1c36b399ddc46b412b21
PatchThird Party Advisory
github.com / grafana/agent/pull/1152
PatchThird Party Advisory
github.com / grafana/agent/releases/tag/v0.20.1
Release NotesThird Party Advisory
github.com / grafana/agent/releases/tag/v0.21.2
Release NotesThird Party Advisory
github.com / grafana/agent/security/advisories/GHSA-9c4x-5hgq-q3wh
Third Party Advisory
security.netapp.com / advisory/ntap-20211229-0004
Third Party Advisory