What’s Vulnerable › Vulnerabilities
CVE-2025-8766: Noobaa-core: excessive permissions of /etc could lead to escalation of privilege in the noobaa-core container
- Severity: medium (CVSS 6.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-13 · updated 2026-07-15
- Weakness: CWE-276
Description
A container privilege escalation flaw was found in certain Multi-Cloud Object Gateway Core 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, can 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
Affected products
References
- https://access.redhat.com/errata/RHSA-2026:37387
- https://access.redhat.com/security/cve/CVE-2025-8766
- https://bugzilla.redhat.com/show_bug.cgi?id=2387265
- https://access.redhat.com/errata/RHSA-2026:37387
- https://access.redhat.com/security/cve/CVE-2025-8766
- https://bugzilla.redhat.com/show_bug.cgi?id=2387265
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-8766.json
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