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CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2026-18024

PostgreSQL ascii() function reads past end of buffer

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Status
Published
Published
Updated
Assigning organization
PostgreSQL

Description

Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text value. This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n/a PostgreSQL

Default version status: unaffected

  • 18 to < 18.6affected
  • 17 to < 17.11affected
  • 16 to < 16.15affected
  • 15 to < 15.19affected
  • 0 to < 14.24affected

References