SB2026072231 - Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.21
Published: July 22, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Interpretation Conflict (CVE-ID: CVE-2026-6322)
CWE-ID: CWE-436 - Interpretation Conflict
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass host-based security checks and route requests to an unintended authority.
The vulnerability exists due to interpretation conflict in the URI host component when processing percent-encoded authority delimiters. A remote attacker can supply a specially crafted URL to bypass host-based security checks and route requests to an unintended authority.
This issue can affect applications that normalize untrusted URLs before host allowlist checks, redirect validation, or outbound request routing.
2) Command Injection (CVE-ID: CVE-2026-9277)
CWE-ID: CWE-77 - Command injection
CVSSv4: 9.2 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary commands on the system.
The vulnerability exists due to shell-quote's `quote()` function did not validate object-token inputs against the operator model used by `parse()`.. A remote attacker can pass specially crafted data to the application and execute arbitrary commands.
Remediation
Install update from vendor's website.