CVE-2026-15809 (GCVE-0-2026-15809)

Vulnerability from cvelistv5 – Published: 2026-07-15 12:32 – Updated: 2026-08-25 10:36
VLAI
Title
Github.com/cri-o/cri-o: fix bypass for cve-2022-4318 — /etc/passwd injection via home env
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 13:06 UTC
CWE
  • CWE-134 - Use of Externally-Controlled Format String
  • CWE-116 - Improper Encoding or Escaping of Output
Assigner
References
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat OpenShift Container Platform 4.22 Unaffected: 0:1.35.6-5.rhaos4.22.git41f610b.el9 , < * (rpm)
    cpe:/a:redhat:openshift:4.22::el8
    cpe:/a:redhat:openshift:4.22::el9
    cpe:/a:redhat:openshift_ironic:4.22::el9
Create a notification for this product.
Red Hat Confidential Compute Attestation     cpe:/a:redhat:confidential_compute_attestation:1
Create a notification for this product.
Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
Create a notification for this product.
Date Public
2026-07-15 10:18
Credits
Red Hat would like to thank Nebojša Jaćović (Independent Security Researcher) for reporting this issue.
Show details on NVD website
To clipboard 

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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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