Untrusted search path in aiven-extras - CVE-2026-100402
Published: November 9, 2026
Vulnerability identifier: #VU162734
CSH Severity: Low
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-100402
CWE-ID: CWE-426
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a highly privileged remote attacker with permission to create temporary objects to gain PostgreSQL superuser privileges.
The vulnerability exists due to SECURITY DEFINER functions in aiven-extras omitting pg_temp from search_path, allowing temporary types to shadow unqualified casts. A highly privileged remote attacker can create a temporary domain and invoke an affected function, causing its malicious constraint to execute as the postgres superuser.
Affected software
aiven-extras
How to mitigate CVE-2026-100402
Install security update from vendor's website.
aiven-extras - update to 1.1.22