PatchTheCVECVE-2026-78155: privilege escalation in StackGres operator allows a low-privilege tenant who owns a database to gain administr
CVE-2026-78155 is a critical-severity flaw (CVSS 9.9) affecting stackgres. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
privilege escalation in StackGres operator allows a low-privilege tenant who owns a database to gain administrator privileges
Why this priority
- Critical severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.9 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 56%) |
| CISA exploited list | No |
| Weakness | CWE-426 |
| Published | 2026-08-23 |
| Last modified | 2026-10-12 |
Last updated 2026-10-12 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-78155?
stackgres: upgrade to 1.19.0. Exact commands for each OS are on this page.
Is CVE-2026-78155 being exploited?
CVE-2026-78155 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-78155 affect?
CVE-2026-78155 affects stackgres. Severity is critical (CVSS 9.9). privilege escalation in StackGres operator allows a low-privilege tenant who owns a database to gain administrator privileges
How urgent is CVE-2026-78155?
Priority 51/100. Critical severity; Public exploit reference