VulnerabilityModified

CVE-2026-2006

Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun.

HIGH 8.8EPSS 1.12%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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: 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.12% probability · 64th percentile
CISA KEV: Not listed
Weakness: CWE-129, CWE-1285
Affected: postgresql/postgresql
Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.