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CVE-2026-78155

Ongres Stackgres privilege escalation

9.9 CRITICALPublic exploitEPSS 0.52%
  1. Published23 Aug 2026

Description

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

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

Ongres Stackgres< 1.19.0

Remediation

Fixed in
Ongres Stackgres≥ 1.19.0

References

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Frequently asked

Is CVE-2026-78155 being actively exploited?

CVE-2026-78155 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.52%.

How severe is CVE-2026-78155?

CVE-2026-78155 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 0.52% probability of exploitation.

Which products are affected by CVE-2026-78155?

Affected products include Ongres Stackgres.

How do I fix CVE-2026-78155?

Upgrade affected software to a fixed version, for example Ongres Stackgres 1.19.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-78155 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.