CVE-2026-33815: Memory-safety vulnerability in github.com/jackc/pgx/v5.

This month

CRITICAL 9.8REMOTEMITIGATE

CVE-2026-33815 is a critical-severity flaw (CVSS 9.8) affecting pgx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-787
Published	2026-04-07
Last modified	2026-10-26

Publisher (CNA): Go Project · Vendor: jackc

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-07 16:16 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

jackc pgx MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pgx || rpm -q pgx || pgx --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33815?

pgx: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-33815 being exploited?

CVE-2026-33815 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33815 affect?

CVE-2026-33815 affects pgx. Severity is critical (CVSS 9.8). Memory-safety vulnerability in github.com/jackc/pgx/v5.

How urgent is CVE-2026-33815?

Priority 51/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

GitHub vulnerabilities

Related CVEs

CVE-2026-33816 CRITICAL 9.8 UPGRADE Memory-safety vulnerability in github.com/jackc/pgx/v5.
CVE-2026-41889 CRITICAL 9.8 UPGRADE pgx is a PostgreSQL driver and toolkit for Go

References

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