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CVE-2026-2006

Postgresql remote code execution

8.8 HIGHEPSS 1.16%
  1. Published12 Feb 2026

Description

Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

CVSS 3.1 breakdown

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

Affected products

Postgresql≥ 14.0 < 14.21 · ≥ 15.0 < 15.16 · ≥ 16.0 < 16.12 · ≥ 17.0 < 17.8

Remediation

Fixed in
Postgresql≥ 14.21

References

and 24 more references

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Frequently asked

Is CVE-2026-2006 being actively exploited?

CVE-2026-2006 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.16%.

How severe is CVE-2026-2006?

CVE-2026-2006 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 1.16% probability of exploitation.

Which products are affected by CVE-2026-2006?

Affected products include Postgresql.

How do I fix CVE-2026-2006?

Upgrade affected software to a fixed version, for example Postgresql 14.21 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-2006 against the real software inventory on every managed device, as each hourly inventory arrives. 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.