Is github.com/jackc/pgx/v5/pgproto3 affected by CVE-2026-33815?

Go github.com/jackc/pgx/v5/pgproto3 is affected in <5.9.0.

Is CVE-2026-33815 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

critical

CVE-2026-33815

Q: Is CVE-2026-33815 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

Go · github.com/jackc/pgx/v5/pgproto3 • Go · github.com/jackc/pgx/v5

Summary

pgx contains memory-safety vulnerability

Severity: critical
EPSS: 0.4% (p32)
Also known as: GHSA-xgrm-4fwx-7qm8, GO-2026-4771
Published: 2026-04-07

References

https://nvd.nist.gov/vuln/detail/CVE-2026-33815
https://github.com/jackc/pgx/issues/2519
https://github.com/jackc/pgx/issues/2530

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.