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CVE-2026-33816

Jackc Pgx buffer overflow

9.8 CRITICALEPSS 0.86%
  1. Published7 Apr 2026

Description

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

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Jackc Pgx< 5.9.0

Remediation

Fixed in
Jackc Pgx≥ 5.9.0

References

and 16 more references

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Frequently asked

Is CVE-2026-33816 being actively exploited?

CVE-2026-33816 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.86%.

How severe is CVE-2026-33816?

CVE-2026-33816 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.86% probability of exploitation.

Which products are affected by CVE-2026-33816?

Affected products include Jackc Pgx.

How do I fix CVE-2026-33816?

Upgrade affected software to a fixed version, for example Jackc Pgx 5.9.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.