GHSA-x6gf-mpr2-68h6

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Source
https://github.com/advisories/GHSA-x6gf-mpr2-68h6
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-x6gf-mpr2-68h6/GHSA-x6gf-mpr2-68h6.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-x6gf-mpr2-68h6
Aliases
  • CVE-2026-4427
Downstream
Related
Published
2026-03-19T15:31:22Z
Modified
2026-03-27T17:29:33.975824Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
pgproto3: Negative field length panics in DataRow.Decode
Details

A flaw was found in pgproto3. A malicious or compromised PostgreSQL server can exploit this by sending a DataRow message with a negative field length. This input validation vulnerability can lead to a denial of service (DoS) due to a slice bounds out of range panic.

Database specific 
{
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-129"
    ],
    "nvd_published_at": "2026-03-19T15:16:28Z",
    "github_reviewed_at": "2026-03-19T19:34:28Z",
    "severity": "HIGH"
}
References

Affected packages

Go / github.com/jackc/pgproto3/v2

Package

Name
github.com/jackc/pgproto3/v2
View open source insights on deps.dev
Purl
pkg:golang/github.com/jackc/pgproto3/v2

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
2.3.3

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-x6gf-mpr2-68h6/GHSA-x6gf-mpr2-68h6.json"