Denial of service in github.com/jackc/pgproto3/v2

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2026-32286
StatePUBLISHED
AssignerGo
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-26 20:16:12 UTC
Updated2026-03-30 15:16:28 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000550000 probability, percentile 0.171190000 (date 2026-04-01)

Problem Types: CWE-125: Out-of-bounds Read

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Github.comjackcpgproto3v2 Github.com/jackc/pgproto3/v2 unaffected 2.0.0 semver Not specified

References

ReferenceSourceLinkTags
github.com/golang/vulndb/issues/4518 [email protected] github.com
securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgresql-wire-... 134c704f-9b21-4f2e-91b3-4a467353bcc0 securityinfinity.com
pkg.go.dev/vuln/GO-2026-4518 [email protected] pkg.go.dev
github.com/jackc/pgx/issues/2507 [email protected] github.com
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