Vulnerability in Github.com/jackc/pgproto3/v2
CVE-2026-32286
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.009 · change: +0.003
Affected products
- Github.com/jackc/pgproto3/v2 — versions 0
- Jackc Pgproto3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/advisories/GHSA-jqcq-xjh3-6g23 (Third Party Advisory)
- github.com/jackc/pgx/issues/2507 (Issue Tracking)
- github.com/golang/vulndb/issues/4518 (Issue Tracking)
- pkg.go.dev/vuln/GO-2026-4518 (Patch, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Mitigation, Third Party Advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2026-32286?
- CVE-2026-32286 is a high-severity vulnerability in Github.com/jackc/pgproto3/v2, classified under Improper Validation of Array Index. CVSS score: 7.5/10. Published 2026-03-26.
- How severe is CVE-2026-32286?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2026-32286 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.