CVE-2026-116321 PUBLISHED

PostgreSQL unterminated name value discloses server memory

Assigner: PostgreSQL
Reserved: 26.10.2026 Published: 12.11.2026 Updated: 12.11.2026

Improper null termination in PostgreSQL array element assignment allows a database user to disclose server memory, via changing the final byte of a fixed-length name value to a nonzero byte and passing it to code that treats the value as a C string. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 4.3

Product Status

Vendor n/a
Product PostgreSQL
Versions Default: unaffected
  • affected from 18 to 18.7 (excl.)
  • affected from 17 to 17.12 (excl.)
  • affected from 16 to 16.16 (excl.)
  • affected from 15 to 15.20 (excl.)
  • affected from 0 to 14.25 (excl.)

Credits

  • The PostgreSQL project thanks Anthropic OSS program for reporting this problem.

References

Problem Types

  • Improper Null Termination CWE