Information Exposure Through Caching Affecting grafana package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.25% (16th percentile)

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  • Snyk IDSNYK-CENTOS10-GRAFANA-19536107
  • published5 Sept 2026
  • disclosed4 Sept 2026

Introduced: 4 Sep 2026

NewCVE-2026-84933  (opens in a new tab)
CWE-524  (opens in a new tab)

How to fix?

There is no fixed version for Centos:10 grafana.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grafana package and not the grafana package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

undici's cache interceptor does not handle the Set-Cookie response header anywhere in its cache path, so it neither refuses to store nor strips that header. In shared cache mode, which is the default, an otherwise cacheable response that carries a Set-Cookie header, for example one marked with a public and max-age directive, is stored and then re-served to a later caller that matches the same cache key. As a result one caller's cookie is disclosed to a different caller, and an untrusted server can inject cookies into cached responses served to all subsequent callers. This violates the requirement that a shared cache must not store cookies. This affects undici versions from 7.0.0 up to 7.29.1 and from 8.0.0 up to 8.10.2. Users should upgrade to undici 7.29.1 or 8.10.2.

CVSS Base Scores

version 3.1