CVE-2026-21724: Missing Protected-field Authorization in Provisioning Contact Points API
Vulnerability summary
CVE-2026-21724 is a medium (CVSS 5.4) Improper Authorization vulnerability in grafana. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 19.7% of scored vulnerabilities.
Not severe (CVSS 5.4, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 5Timeline
- 26-03-2026PublishedVulnerability first disclosed.
- 27-08-2026Last modifiedVulnerability information updated.
Description
A vulnerability has been discovered in Grafana OSS where an authorization bypass in the provisioning contact points API allows users with Editor role to modify protected webhook URLs without the required alert.notifications.receivers.protected:write permission.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NDiffers
- OSV · GoEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- OSV · ChainguardEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- NVDNIST4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NDiffers
EPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
Increase +0.01 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.
Chainguard8 products
- grafana-fips-11.6< 11.6.16-r1
- grafana-fips-12.0< 12.0.10-r6
- grafana-fips-12.1< 12.1.10.01-r0
- grafana-fips-12.2< 12.2.8.01-r0
- grafana-fips-12.3< 12.3.6.01-r0
Grafana2 products
- grafana≥ 11.6.9, < 11.6.14 | ≥ 12.1.5, < 12.1.10 | ≥ 12.2.2, < 12.2.8 | ≥ 12.3.1, < 12.3.6
- grafana oss≥ 12.3.1, < 12.3.6 | ≥ 12.2.2, < 12.2.8 | ≥ 12.1.5, < 12.1.10 | ≥ 11.6.9, < 11.6.14
Github.com/grafana1 product
- grafana< 1.9.2-0.20260323180334-daffe750de85 | All versions (No fix recorded)
Ubuntu1 product
- grafanaAll versions (No fix recorded)
4 vendors · 12 products
References
9 links- github.com/grafana/grafanaPACKAGE