Is there a public exploit for CVE-2026-116321?

No public exploit for CVE-2026-116321 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-116321?

CVE-2026-116321 scores CVSS 4.3 (v3.1), rated medium.

What does CVE-2026-116321 affect?

CVE-2026-116321 affects n/a PostgreSQL.

4.3 Medium

Improper null termination in PostgreSQL array element assignment allows a database user to disclose server memory, via changing the final…

CVE-2026-116321

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.

Assessment

CVSS: 4.3 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 12 November 2026
Last updated: 12 November 2026
Affected: n/a · PostgreSQL
Assigner: PostgreSQL

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

At the source

EUVD (ENISA)

References

https://www.postgresql.org/support/security/CVE-2026-116321/

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