CVE-2025-8341Network attack vector

SSRF via prefix-only URL allowlist validation

Published Aug 4, 2025 · Updated Aug 4, 2025

SSRF in Grafana Infinity Datasource 0.6.0 through 3.4.0 allows remote attackers to send server-side requests via crafted URLs. The CanAllowURL function accepts a URL when its raw string starts with an allowed entry, without first requiring the parsed hostname to match that entry. Exposure requires an allowed-URL configuration and a crafted datasource URL; successful requests can reach hosts outside that allowlist.

CVSS severity6.1
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Grafana Infinity Datasource 0.6.0 through 3.4.0 allows remote attackers to send server-side requests via crafted URLs. The CanAllowURL function accepts a URL when its raw string starts with an allowed entry, without first requiring the parsed hostname to match that entry. Exposure requires an allowed-URL configuration and a crafted datasource URL; successful requests can reach hosts outside that allowlist.

The record

CVE
CVE-2025-8341
Published
Aug 4, 2025
Updated
Aug 4, 2025
Vendor
Grafana Labs
Product
Grafana Infinity Datasource
Classifications
CWE-918, CAPEC-664, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.6.0 <3.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Grafana Labs · Grafana Infinity Datasourceversion=0.6.0 <3.4.1

Published CVSS scores

6.1Grafana Labs security advisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.0Grafana Labs CNA recordCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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