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TI-2025-35723 Aliases CVE-2025-57854GHSA-28p4-crp9-2q2x

Osus-operator: privilege escalation via excessive /etc/passwd permissions

Priority LOW 29CWE-276Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

A container privilege escalation flaw was found in certain OpenShift Update Service (OSUS) images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, may be able to leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00151 4th percentileScored 2026-11-08
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat OpenShift Update Service——No fix listedCNA
  • Red Hat OpenShift Update Service VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redhat:openshift_update_service:-:*:*:*:*:*:*:*not specified by NVDVulnerableRed Hat
  • cpe:2.3:a:redhat:openshift_update_service:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift Update ServiceAffectedNo fix yet

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-57854
  2. 2026-10-03 Alias added: GHSA-28p4-crp9-2q2x

References

Advisory 2

  • TI-2026-52030 Quay: unauthenticated secscan notification endpoint in quay when psk is unset CVSS 3.1HIGH 8.2
  • TI-2026-52032 Quay: unauthenticated exported logs download in quay CVSS 3.1HIGH 7.5
  • TI-2026-52031 Quay: stripe webhook accepts forged events without signature verification in quay CVSS 3.1HIGH 7.5
  • TI-2026-52033 Quay: ssrf via build archive_url in quay build api CVSS 3.1HIGH 7.1
  • TI-2026-52028 Quay: ldap referral filter injection in quay external ldap authentication CVSS 3.1MEDIUM 6.5
  • TI-2026-52029 Quay: repository notification uuid idor in quay api CVSS 3.1MEDIUM 5.3
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences