CVE-2026-52791

The record

fuse-overlayfs is an implementation of overlayfs in FUSE for rootless containers. Prior to 1.17, the release-1.x C branch preserves SUID and SGID mode bits in main.c during open(O_TRUNC) and truncate handling on a copied-up file, allowing a low-privileged process to leave the upper-layer file with mode 4777. This issue is fixed in version 1.17.

Affected packages

Related vulnerabilities

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• CVE-2026-62106 Subscriber Privilege Escalation in SMS Alert Order Notifications <= 3.9.9 versions. CWE-266
• CVE-2026-62102 Subscriber Privilege Escalation in Gato GraphQL <= 19.2.3 versions. CWE-266
• CVE-2026-8303 Incorrect privilege assignment vulnerability in TUBITAK BILGEM Software Technologies… CWE-266
• CVE-2026-81805 Unauthenticated Privilege Escalation in SiteSkite <= 2.1.5 versions. CWE-266
• CVE-2026-15140 A privilege-escalation issue in the Portworx Operator when deployed on Red Hat OpenShift… CWE-266
• CVE-2026-86804 A vulnerability was identified in seakee CPA-Manager-Plus up to 1.11.10. CWE-266
• CVE-2026-77654 Improper Privilege Management vulnerability in Horizon Security Analyzer (formerly… CWE-266