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VulnerabilityPublished

CVE-2025-57854: Red Hat OpenShift Update Service · Incorrect Default Permissions

Affects Red Hat OpenShift Update ServiceSource CVE Database V5

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Not known to be exploited · CVSS 6.4 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
6.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red HatRed Hat OpenShift Update ServiceAffected–Fixed in–

AI-suggested

Until a fix is available, restrict container access to trusted users only, especially limiting membership in the root group within containers. Avoid running containers with unnecessary group privileges. Monitor Red Hat's advisory for updates on official fixes or workarounds.

Description

CVE-2025-57854 is a container privilege escalation vulnerability in certain Red Hat OpenShift Update Service (OSUS) images. The issue arises because the /etc/passwd file is created with group-writable permissions during the image build process. An attacker with command execution inside the container and membership in the root group can modify /etc/passwd to add a user with arbitrary UID, including root (UID 0), gaining full root privileges within the container. This vulnerability has a medium severity with a CVSS score of 6.4. No official patch or remediation guidance is currently confirmed from Red Hat's advisory.

References

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