CVE-2026-42127

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Source
https://cve.org/CVERecord?id=CVE-2026-42127
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42127.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42127
Aliases
Downstream
Related
Published
2026-06-22T16:31:28.096Z
Modified
2026-08-25T03:51:50.122639192Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Pre-authentication denial of service in the public dashboard query endpoint
Details

The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated attackers to trigger excessive memory allocation by sending arbitrarily large JSON payloads. This can lead to denial of service through memory exhaustion. No valid dashboard access token or authentication is required to exploit this vulnerability.

Database specific 
{
    "cna_assigner": "GRAFANA",
    "cwe_ids": [
        "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42127.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "11.6.0"
                },
                {
                    "last_affected": "11.6.14"
                },
                {
                    "introduced": "12.2.0"
                },
                {
                    "last_affected": "12.2.8"
                },
                {
                    "introduced": "12.3.0"
                },
                {
                    "last_affected": "12.3.6"
                },
                {
                    "introduced": "12.4.0"
                },
                {
                    "last_affected": "12.4.3"
                },
                {
                    "introduced": "13.0.0"
                },
                {
                    "last_affected": "13.0.1"
                },
                {
                    "introduced": "11.6.0"
                },
                {
                    "last_affected": "11.6.14"
                },
                {
                    "introduced": "12.2.0"
                },
                {
                    "last_affected": "12.2.8"
                },
                {
                    "introduced": "12.3.0"
                },
                {
                    "last_affected": "12.3.6"
                },
                {
                    "introduced": "12.4.0"
                },
                {
                    "last_affected": "12.4.3"
                },
                {
                    "introduced": "13.0.0"
                },
                {
                    "last_affected": "13.0.1"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/grafana/grafana

Affected ranges

Type
GIT
Repo
https://github.com/grafana/grafana
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
4da40799451631e6c8591c841282447cdf55be3d
Introduced
92f1fba9b4b6700328e99e97328d6639df8ddc3d
Last affected
576f2e81b33bc857df779c95cb38effaa6c58b03
Introduced
20051fb1fc604fc54aae76356da1c14612af41d0
Last affected
3b85eb0d9490f36d682e4fe55684f7da7b8b99b6
Introduced
d1729c53a7f44e2e58947eb44eb896c2fb1c30b3
Last affected
86c83248f8739fbc178c0e5c451b44bdba7b5ed7
Introduced
e9de482b5110e6e7310a18274c53a0d7d0eee6af
Last affected
a100054f212653d1f15ae4fc80e98c9548c77f86
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.6.14"
        },
        {
            "introduced": "12.2.0"
        },
        {
            "last_affected": "12.2.8"
        },
        {
            "introduced": "12.3.0"
        },
        {
            "last_affected": "12.3.6"
        },
        {
            "introduced": "12.4.0"
        },
        {
            "last_affected": "12.4.3"
        },
        {
            "introduced": "13.0.0"
        },
        {
            "last_affected": "13.0.1"
        }
    ],
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*"
}

Affected versions

pkg/promlib/v0.*
pkg/promlib/v0.0.1
pkg/promlib/v0.0.10
pkg/promlib/v0.0.11
pkg/promlib/v0.0.2
pkg/promlib/v0.0.3
pkg/promlib/v0.0.4
pkg/promlib/v0.0.5
pkg/promlib/v0.0.6
pkg/promlib/v0.0.7
pkg/promlib/v0.0.8
pkg/promlib/v0.0.9
pkg/util/xorm/v0.*
pkg/util/xorm/v0.0.1
v0.*
v0.0.0-cloud
v0.0.1-test
v1.*
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.1.0
v1.2.0
v1.3.0
v1.4.0
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.6.0
v1.6.1
v1.7.0-rc1
v1.9.0
v1.9.0-rc1
v1.9.1
v10.*
v10.0.0-preview
v11.*
v11.6.0
v11.6.10
v11.6.11
v11.6.12
v11.6.13
v11.6.14
v11.6.2
v11.6.4
v11.6.5
v11.6.6
v11.6.7
v11.6.8
v11.6.9
v12.*
v12.2.1
v12.2.2
v12.2.3
v12.2.4
v12.2.5
v12.2.6
v12.2.7
v12.2.8
v12.3.1
v12.3.2
v12.3.3
v12.3.4
v12.3.5
v12.3.6
v12.4.1
v12.4.2
v12.4.3
v13.*
v13.0.1
v2.*
v2.0.0-beta1
v2.0.0-beta3
v2.0.1
v2.0.2
v2.5.0
v2.6.0
v2.6.0-beta1
v3.*
v3.0.0-beta6
v3.0.0-beta7
v3.0.1
v3.0.2
v3.1.0-beta1
v3.2.1-test
v4.*
v4.4.0
v4.5.0
v4.5.0-beta1
v4.6.0-beta1
v5.*
v5.,2.4
v5.0.0
v5.0.0-beta1
v5.0.0-beta2
v5.0.0-beta3
v5.0.0-beta4
v5.0.0-beta5
v6.*
v6.0.0-beta1
v6.5
v8.*
v8.3.3
v8.4.0-beta1
v8.5.16
v9.*
v9.3.0-beta1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42127.json"