High severity · published Mar 26, 2026
CVE-2026-32286
Denial of service in github.com/jackc/pgproto3/v2
7.5
CVSS
0.7%
EPSS
No
On KEV
Description
The DataRow.Decode function fails to properly validate field lengths. A malicious or compromised PostgreSQL server can send a DataRow message with a negative field length, causing a slice bounds out of range panic.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
github.com/jackc/pgproto3/v2 · github.com/jackc/pgproto3/v2
All versions, or not specified · source: vendor
PG
Pgproto3 · Jackc
2.0.0 through 2.3.3 · source: NVD
AI
Assisted Installer for Red Hat OpenShift Container Platform 2 · Red Hat
All versions, or not specified · source: CISA
ME
Multicluster Engine for Kubernetes · Red Hat
All versions, or not specified · source: CISA
MG
Multicluster Global Hub 1.3.4 · Red Hat
All versions, or not specified · source: CISA
MG
Multicluster Global Hub 1.4.5 · Red Hat
All versions, or not specified · source: CISA
MG
Multicluster Global Hub 1.6.5 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Advanced Cluster Management for Kubernetes 2 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Advanced Cluster Security 4.8 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: CISA
Affected product
GI
github.com/jackc/pgproto3/v2
github.com/jackc/pgproto3/v2
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32286
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32286
Third Party Advisory
https://github.com/advisories/GHSA-jqcq-xjh3-6g23
Issue Tracking
https://github.com/golang/vulndb/issues/4518
Issue Tracking
https://github.com/jackc/pgx/issues/2507
Patch
https://pkg.go.dev/vuln/GO-2026-4518
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:11070
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:11217