VulnerabilityModified
CVE-2026-32286
A malicious or compromised PostgreSQL server can send a DataRow message with a negative field length, causing a slice bounds out of range panic.
HIGH 7.5EPSS 0.65%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.65% probability · 49th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-129, CWE-1285
- Affected
- jackc/pgproto3
- Source
- security@golang.org
References
- https://github.com/advisories/GHSA-jqcq-xjh3-6g23Third Party Advisory
- https://github.com/golang/vulndb/issues/4518Issue Tracking
- https://github.com/jackc/pgx/issues/2507Issue Tracking
- https://pkg.go.dev/vuln/GO-2026-4518Patch, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:11070
- https://access.redhat.com/errata/RHSA-2026:11217
- https://access.redhat.com/errata/RHSA-2026:11856
- https://access.redhat.com/errata/RHSA-2026:11916
- https://access.redhat.com/errata/RHSA-2026:11996
- https://access.redhat.com/errata/RHSA-2026:19375
- https://access.redhat.com/errata/RHSA-2026:21017
- https://access.redhat.com/errata/RHSA-2026:21769
- https://access.redhat.com/errata/RHSA-2026:22347
- https://access.redhat.com/errata/RHSA-2026:22423
- https://access.redhat.com/errata/RHSA-2026:22450
- https://access.redhat.com/errata/RHSA-2026:22465
- https://access.redhat.com/errata/RHSA-2026:22714
- https://access.redhat.com/errata/RHSA-2026:23345
- https://access.redhat.com/errata/RHSA-2026:24853
- https://access.redhat.com/security/cve/CVE-2026-32286
- https://bugzilla.redhat.com/show_bug.cgi?id=2451847
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32286.json
- https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgresql-wire-protocol-parsers-pgproto3-pgxMitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.