Server-Side Request Forgery (SSRF) Affecting redhat/redhat-operator-index package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-RHEL7-REDHATREDHATOPERATORINDEX-15966896
  • published10 Apr 2026
  • disclosed6 Apr 2026

Introduced: 6 Apr 2026

NewCVE-2026-33540  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 redhat/redhat-operator-index.

NVD Description

Note: Versions mentioned in the description apply only to the upstream redhat/redhat-operator-index package and not the redhat/redhat-operator-index package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.0, in pull-through cache mode, distribution discovers token auth endpoints by parsing WWW-Authenticate challenges returned by the configured upstream registry. The realm URL from a bearer challenge is used without validating that it matches the upstream registry host. As a result, an attacker-controlled upstream (or an attacker with MitM position to the upstream) can cause distribution to send the configured upstream credentials via basic auth to an attacker-controlled realm URL. This vulnerability is fixed in 3.1.0.

CVSS Base Scores

version 3.1