CVE-2023-5870
PostgreSQL vulnerability analysis and mitigation

A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.


SourceNVD

Related PostgreSQL vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-6464HIGH8.1
  • PostgreSQL logoPostgreSQL
  • cpe:2.3:a:postgresql:postgresql
NoYesAug 13, 2026
CVE-2026-73515HIGH7.2
  • PostgreSQL logoPostgreSQL
  • postgis-client
NoYesAug 13, 2026
CVE-2026-6471HIGH7.2
  • PostgreSQL logoPostgreSQL
  • postgresql-17
NoYesAug 13, 2026
CVE-2026-6470MEDIUM4.3
  • PostgreSQL logoPostgreSQL
  • cpe:2.3:a:postgresql:postgresql
NoYesAug 13, 2026
CVE-2026-6469LOW3.8
  • PostgreSQL logoPostgreSQL
  • postgresql-13
NoYesAug 13, 2026

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