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CVE-2026-78155

Untrusted Search Path in StackGres

9.9 Critical

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

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.52%Unchanged since Aug 23, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.9

Untrusted Search Path in StackGres

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

Record
CVE-2026-78155
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-426
Updated
2026-11-02
EUVDEUVD-2026-64648 9.9

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

Record
EUVD-2026-64648
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-gf36-c938-gjrw 9.9

privilege escalation in StackGres operator allows a low-privilege tenant who owns a database to...

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

Record
GHSA-gf36-c938-gjrw
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-426
Updated
2026-11-02
NVD 9.9

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

Record
CVE-2026-78155
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-426
Updated
2026-11-02
OSV 9.9

Untrusted Search Path in StackGres

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

Record
CVE-2026-78155
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-426
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-78155 is a critical vulnerability (CVSS 9.9) in Ongres Stackgres, published August 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.52%, the 44th percentile. No source names a fixed version.

References

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