Answer in brief
CVE-2026-33816 records a Critical severity (CVSS 9.8) vulnerability in CVE-2026-33816 in github.com/jackc/pgx. The current sources do not mark it as known exploited. The current feed maps github.com/jackc/pgx/v5/github.com/jackc/pgx/v5/pgproto3 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-33816 records a Critical severity (CVSS 9.8) vulnerability in CVE-2026-33816 in github.com/jackc/pgx. The current sources do not mark it as known exploited. The current feed maps github.com/jackc/pgx/v5/github.com/jackc/pgx/v5/pgproto3 (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 9.8. 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 github.com/jackc/pgx/v5/github.com/jackc/pgx/v5/pgproto3 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| github.com/jackc/pgx/v5/github.com/jackc/pgx/v5/pgproto3generic | >=0 <5.9.0 | 5.9.0 |
Published upstream
Apr 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 9, 2026
Memory-safety vulnerability in github.com/jackc/pgx/v5.
Quoted source text, attributed separately from HOL analysis.
CVSS is 9.8. 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 github.com/jackc/pgx/v5/github.com/jackc/pgx/v5/pgproto3 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| github.com/jackc/pgx/v5/github.com/jackc/pgx/v5/pgproto3generic | >=0 <5.9.0 | 5.9.0 |
Published upstream
Apr 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 9, 2026
Memory-safety vulnerability in github.com/jackc/pgx/v5.
Quoted source text, attributed separately from HOL analysis.