What is CVE-2026-78155?

CVE-2026-78155 is a critical-severity vulnerability in Ongres Stackgres, classified under Untrusted Search Path. CVSS score: 9.9/10. Published 2026-08-23.

How severe is CVE-2026-78155?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Vulnerability in Ongres Stackgres

CVE-2026-78155

privilege escalation in StackGres operator allows a low-privilege tenant who owns a database to gain administrator privileges

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Ongres Stackgres

Weakness classification (CWE)

CWE-426 — Untrusted Search Path

References

cve@gitlab.com

Frequently asked questions

What is CVE-2026-78155?: CVE-2026-78155 is a critical-severity vulnerability in Ongres Stackgres, classified under Untrusted Search Path. CVSS score: 9.9/10. Published 2026-08-23.
How severe is CVE-2026-78155?: Critical severity. CVSS v3 base score is 9.9 out of 10.