CVE-2026-42127

Aliases:CGA-7cm6-vgpj-jw7qCGA-gx3q-8qv7-q2ffCGA-h98r-mp3g-3xf6CGA-22qr-4hqw-gx32CGA-34qr-4m2q-5vrcCGA-37c5-7cc6-mg2jCGA-39cw-q88g-mx6rCGA-3frp-xwhr-225vCGA-3rrw-5rcw-pr3wCGA-453q-w2q2-58fwCGA-47pg-mx7m-fh69CGA-49f9-8wwg-vq4cCGA-4qv5-cp9x-5mjwCGA-4x7v-6p72-pg33CGA-5fpq-g5h7-f8q6CGA-5x72-vcqr-4fhvCGA-6ppm-p3q5-9x7gCGA-6v4x-4c6r-rwcmCGA-72vx-j687-2j3rCGA-72wc-m5hg-h76mCGA-7473-wfv2-qpg8CGA-77cm-327q-6q66CGA-77hj-8h74-5pgcCGA-7fqf-vx29-5577CGA-7qq5-gr35-hjr6CGA-7r2w-jgcg-rx5wCGA-7vj8-55wg-vqmmCGA-8582-c9q8-jgjhCGA-94m4-x562-xmvvCGA-9f8r-j8m3-h36fCGA-9jxg-h7qx-vxvqCGA-9xfc-gm5f-rxmwCGA-c3m5-624p-qf8cCGA-chrw-rf7r-8r72CGA-cvv6-xhc3-4qxwCGA-f3fm-w7v3-3pwjCGA-fqwx-c274-59xwCGA-g83w-82pq-3xfjCGA-g8c7-93f6-xv5hCGA-ghpm-5c8m-gm72CGA-gxx5-j4qw-94whCGA-h3cc-9ggx-hjrqCGA-j7qv-pr4m-hcr6CGA-m242-r93c-phw7CGA-mq44-5gqq-2pq5CGA-p27c-hv3f-xj47CGA-pxv8-5vmv-87jgCGA-qrwj-r7q4-523wCGA-r94x-4pfv-44xfCGA-rj98-2x3q-x8j6CGA-rjfg-6c3w-f6rjCGA-rwr7-ww4w-9hv3CGA-v5f5-g4r5-7wq5CGA-vpvj-3594-jr4pCGA-wc2f-8gx3-ww45CGA-wwxj-qhwx-hrfvCGA-x8p7-rm45-r3wpCGA-xfv9-wv9x-7cqcCGA-xmfx-4h83-gqrcCGA-xw9q-h7h7-739mRHSA-2026:54184
Advisory lineage Upstream: 0 Downstream: 6
Modified
Published: 22 Jun 2026, 16:31
Last modified:27 Aug 2026, 17:22

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
0.43% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 Jun 2026, 16:31
Published
Vulnerability first disclosed
27 Aug 2026, 17:22
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.43%• Percentile: 37%

Techniques & Countermeasures

  • CWE-400•Uncontrolled Resource Consumption

    The product does not properly control the allocation and maintenance of a limited resource.

  • CWE-770•Allocation of Resources Without Limits or Throttling

    The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Affected Systems

  • chainguard•grafana-11.6

    < 11.6.16-r2

  • chainguard•grafana-12.0

    all

  • chainguard•grafana-12.1

    all

  • chainguard•grafana-12.2

    < 12.2.10-r10

  • chainguard•grafana-12.3

    < 12.3.7-r0

  • chainguard•grafana-12.4

    < 12.4.4-r0

  • chainguard•grafana-fips-12.0

    all

  • chainguard•grafana-fips-12.1

    all

  • chainguard•grafana-fips-12.2

    < 12.2.10-r4

  • chainguard•grafana-fips-12.3

    < 12.3.7-r0

  • chainguard•grafana-fips-12.4

    < 12.4.4-r0

  • wolfi•grafana-12.3

    < 12.3.7-r0

  • wolfi•grafana-12.4

    < 12.4.4-r0

  • grafana•grafana

    ≤ 11.6.14 | ≥ 12.2.0, ≤ 12.2.8 | ≥ 12.3.0, ≤ 12.3.6 | ≥ 12.4.0, ≤ 12.4.3 | ≥ 13.0.0, ≤ 13.0.1

  • grafana•grafana enterprise

    ≤ 11.6.14 | ≤ 12.2.8 | ≤ 12.3.6 | ≤ 12.4.3 | ≤ 13.0.1 | ≥ 11.6.0, ≤ 11.6.14 | ≥ 12.2.0, ≤ 12.2.8 | ≥ 12.3.0, ≤ 12.3.6 | ≥ 12.4.0, ≤ 12.4.3 | ≥ 13.0.0, ≤ 13.0.1

  • grafana•grafana oss

    ≥ 11.6.0, ≤ 11.6.14 | ≥ 12.2.0, ≤ 12.2.8 | ≥ 12.3.0, ≤ 12.3.6 | ≥ 12.4.0, ≤ 12.4.3 | ≥ 13.0.0, ≤ 13.0.1

  • redhat•grafana

    < 0:10.2.6-23.el9_8.1

  • redhat•grafana-debuginfo

    < 0:10.2.6-23.el9_8.1

  • redhat•grafana-debugsource

    < 0:10.2.6-23.el9_8.1

  • redhat•grafana-selinux

    < 0:10.2.6-23.el9_8.1

References (9)