Answer in brief
CVE-2023-5870 records a Low severity (CVSS 2.2) vulnerability in Postgresql: role pg_signal_backend can signal certain superuser processes.. The current sources do not mark it as known exploited. The current feed maps Red Hat/postgresql (generic), Red Hat/postgresql:10/postgresql (generic), Red Hat/rh-postgresql10-postgresql (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 2.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Red Hat/postgresql (generic), Red Hat/postgresql:10/postgresql (generic), Red Hat/rh-postgresql10-postgresql (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Red Hat/postgresqlgeneric | * | Not reported |
| Red Hat/postgresql:10/postgresqlgeneric | * | Not reported |
| Red Hat/rh-postgresql10-postgresqlgeneric | * | Not reported |
Published upstream
Dec 10, 2023
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.