CVE-2022-39307Network attack vector

Unauthenticated user enumeration via password-reset error

Published Nov 9, 2022 · Updated Jan 28, 2026

Information disclosure in Grafana before 8.5.15 and 9.0.0-beta1 through 9.2.3 allows remote attackers to enumerate users via password reset. The /api/user/password/sent-reset-email handler returns a distinct user not found JSON message when the submitted username or email is absent. Unauthenticated network access to the login page is sufficient, and the disclosed existence of accounts can support targeted credential attacks.

CVSS severity5.3
Medium
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Grafana before 8.5.15 and 9.0.0-beta1 through 9.2.3 allows remote attackers to enumerate users via password reset. The /api/user/password/sent-reset-email handler returns a distinct user not found JSON message when the submitted username or email is absent. Unauthenticated network access to the login page is sufficient, and the disclosed existence of accounts can support targeted credential attacks.

The record

CVE
CVE-2022-39307
Published
Nov 9, 2022
Updated
Jan 28, 2026
Vendor
Grafana Labs
Product
Grafana
Classifications
CWE-209, CWE-200, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Jan 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 8.5.15
  2. Affected versionversion=>= v9.0.0-beta1, < 9.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Grafana Labs · Grafanaversion=< 8.5.15; version=>= v9.0.0-beta1, < 9.2.4

Published CVSS scores

5.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1087Account Discovery

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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