CVE-2026-2006
February 12, 2026
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.
Affected Packages
https://github.com/postgres/postgres.git (GITHUB):
Affected version(s) >=REL_18_BETA1 <REL_18_2Fix Suggestion:
Update to version REL_18_2https://github.com/postgres/postgres.git (GITHUB):
Affected version(s) >=REL_17_BETA1 <REL_17_8Fix Suggestion:
Update to version REL_17_8https://github.com/postgres/postgres.git (GITHUB):
Affected version(s) >=REL_15_BETA1 <REL_15_16Fix Suggestion:
Update to version REL_15_16https://github.com/postgres/postgres.git (GITHUB):
Affected version(s) >=REL_14_BETA1 <REL_14_21Fix Suggestion:
Update to version REL_14_21https://github.com/postgres/postgres.git (GITHUB):
Affected version(s) >=REL_16_BETA1 <REL_16_12Fix Suggestion:
Update to version REL_16_12Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Validation of Array Index
EPSS
Base Score:
0.07
