CVE-2025-12141: Grafana Alerting Editors can edit destination of webhooks they did not create
Vulnerability summary
CVE-2025-12141 is a medium (CVSS 6.5) vulnerability in grafana. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.2% of scored vulnerabilities.
Not severe (CVSS 1.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 15-04-2026PublishedVulnerability first disclosed.
- 15-04-2026Last modifiedVulnerability information updated.
Description
In Grafana's alerting system, users with edit permissions for a contact point, specifically the permissions “alert.notifications:write” or “alert.notifications.receivers:test” that are granted as part of the fixed role "Contact Point Writer", which is part of the basic role Editor - can edit contact points created by other users, modify the endpoint URL to a controlled server. By invoking the test functionality, attackers can capture and extract redacted secure settings, such as authentication credentials for third-party services (e.g., Slack tokens). This leads to unauthorized access and potential compromise of external integrations.
CVSS metrics
6 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/S:N/AU:YDiffers
- OSV · ChainguardEcosystem advisory · calculated5.3MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/S:N/AU:YDiffers
- NVDNIST1.3LowCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:X/V:X/RE:X/U:X
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.26% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard5 products
- grafana-11.5All versions (No fix recorded)
- grafana-11.6All versions (No fix recorded)
- grafana-12.0All versions (No fix recorded)
- grafana-12.1All versions (No fix recorded)
- grafana-12.2All versions (No fix recorded)
Grafana2 products
- grafana≥ 8.0.0, ≤ 12.3.0
- grafana alerting≥ 8.0.0, ≤ 12.3.0
Opensuse1 product
- grafana&distro=openSUSE Tumbleweed< 12.4.4-1.1
Ubuntu1 product
- grafanaAll versions (No fix recorded)
4 vendors · 9 products
References
7 links- github.com/grafana/grafanaPACKAGE