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GHSA-9jj7-4m8r-rfcm

CRITICAL

GHSA-9jj7-4m8r-rfcm is a critical-severity (CVSS 9.8) Out-of-bounds Write vulnerability in github.com/jackc/pgx/v5. O3 Security confirms whether GHSA-9jj7-4m8r-rfcm is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Memory-safety vulnerability in github.com/jackc/pgx/v5.

Also known asCVE-2026-33816GO-2026-4772
Published
Apr 7, 2026
Updated
Apr 17, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
🐹github.com/jackc/pgx/v5

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Memory-safety vulnerability in github.com/jackc/pgx/v5.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/jackc/pgx/v5all versions5.9.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/jackc/pgx/v5. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update github.com/jackc/pgx/v5 to 5.9.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9jj7-4m8r-rfcm is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-9jj7-4m8r-rfcm is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-9jj7-4m8r-rfcm. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Memory-safety vulnerability in github.com/jackc/pgx/v5.
O3 Security · Impact-Aware SCA

Is GHSA-9jj7-4m8r-rfcm in your dependencies?

O3 detects GHSA-9jj7-4m8r-rfcm across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.