PT-2026-60164 · Red Hat · Confidential Compute Attestation+1

Published 2026-07-15 · Updated 2026-07-15 · CVE-2026-15809

NVD

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

A flaw was found in CRI-O. The fix for a previous vulnerability (CVE-2022-4318) was incorrect, allowing it to be bypassed. An attacker capable of setting environment variables on a container can inject a newline character into the HOME environment variable. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.

Fix

Improper Encoding or Escaping of Output

Weakness Enumeration

CWE-116

Related Identifiers

CVE-2026-15809

Affected Products

Confidential Compute Attestation

Red Hat Openshift Container Platform 4

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-15809 · Security Note
• https://github.com/cri-o/cri-o/pull/6450 · Note
• https://github.com/cri-o/cri-o/pull/6524 · Note
• https://access.redhat.com/security/cve/CVE-2026-15809 · Note
• https://access.redhat.com/security/cve/cve-2022-4318 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2500846 · Note