CVE-2026-6473

Summary

Integer wraparound in multiple PostgreSQL server features allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds. This may execute arbitrary code as the operating system user running the database. In applications that pass gigabyte-scale user inputs to the relevant database functions, the application input provider may achieve a segmentation fault. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Affected Software

VendorProductVersion RangeStatus
n/aPostgreSQL18 < 18.4affected
n/aPostgreSQL17 < 17.10affected
n/aPostgreSQL16 < 16.14affected
n/aPostgreSQL15 < 15.18affected
n/aPostgreSQL0 < 14.23affected

Weaknesses

  • CWE-190: Integer Overflow or Wraparound

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

postgresql: integer overflow can cause an undersized allocation and an out-of-bounds write

Additional References

References