CVE-2026-15742
Published:August 13, 2026
Updated:September 01, 2026
Integer wraparound in PostgreSQL fuzzystrmatch allows a user to direct writes to a huge range of addresses, executing arbitrary code as the operating system user running the database, via extreme inputs to SQL function levenshtein() or levenshtein_less_equal(). Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Affected Packages
https://github.com/postgres/postgres.git (GITHUB):
Affected version(s) >=REL_14_0 <REL_14_24Fix Suggestion:
Update to version REL_14_24https://github.com/postgres/postgres.git (GITHUB):
Affected version(s) >=REL_18_0 <REL_18_6Fix Suggestion:
Update to version REL_18_6https://github.com/postgres/postgres.git (GITHUB):
Affected version(s) >=REL_17_0 <REL_17_11Fix Suggestion:
Update to version REL_17_11https://github.com/postgres/postgres.git (GITHUB):
Affected version(s) >=REL_16_0 <REL_16_15Fix Suggestion:
Update to version REL_16_15https://github.com/postgres/postgres.git (GITHUB):
Affected version(s) >=REL_15_0 <REL_15_19Fix Suggestion:
Update to version REL_15_19Related 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)
Integer Overflow or Wraparound
EPSS
Base Score:
0.44