PostgreSQL: plperl use-after-free RCE (CVE-2026-116307)
A use-after-free vulnerability in the PostgreSQL plperl procedural language allows an object creator to execute arbitrary code as the operating system user running the database.
CVE search metadata
CVE search record: CVE-2026-116307. Severity: high. CVSS: 8.8. KEV: no. Product: PostgreSQL. Brief: PostgreSQL: plperl use-after-free RCE (CVE-2026-116307). Brief link: https://feed.craftedsignal.io/briefs/2026-11-postgresql-plperl-uaf-cve-2026-116307/
Triage facts
Revision 1- Applicability
- PostgreSQL
- Evidence
- Unknown
- Severity
- High
- Sources
- 1 public source
- Freshness
- Revision 1Nov 12, 18:46 UTC
- Vulnerabilities
- 1 CVE
- Source quality
- A2Roughly even chance
CVE-2026-116307 is a use-after-free vulnerability within the PostgreSQL plperl extension. The vulnerability exists when an object creator re-enters plperl and frees a prepared query while an outer invocation is executing it. Successful exploitation allows the attacker to execute arbitrary code as the operating system user running the database.