{"schema_version":"1.7.5","id":"GHSA-x6gf-mpr2-68h6","published":"2026-03-19T15:31:22Z","modified":"2026-03-30T21:17:38.552998Z","withdrawn":"2026-03-30T21:09:40Z","aliases":["CVE-2026-4427"],"related":["CGA-hq26-hvg2-rwhg"],"summary":"Duplicate Advisory: pgproto3: Negative field length panics in DataRow.Decode","details":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-jqcq-xjh3-6g23. This link is maintained to preserve external references.\n\n## Original Description\nA 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.","affected":[{"package":{"name":"github.com/jackc/pgproto3/v2","ecosystem":"Go","purl":"pkg:golang/github.com/jackc/pgproto3/v2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"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"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4427"},{"type":"WEB","url":"https://github.com/golang/vulndb/issues/4518"},{"type":"WEB","url":"https://github.com/jackc/pgx/issues/2507"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-4427"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2448626"},{"type":"PACKAGE","url":"https://github.com/jackc/pgproto3"},{"type":"WEB","url":"https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgresql-wire-protocol-parsers-pgproto3-pgx"}],"database_specific":{"cwe_ids":["CWE-129"],"github_reviewed":true,"github_reviewed_at":"2026-03-19T19:34:28Z","nvd_published_at":"2026-03-19T15:16:28Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}