{"id":"JLSEC-2026-56","details":"Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun.  That suffices to execute arbitrary code as the operating system user running the database.  Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.","modified":"2026-07-18T00:02:10.835511058Z","published":"2026-04-03T13:27:15.647Z","upstream":["CVE-2026-2006"],"database_specific":{"sources":[{"html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2006","database_specific":{"status":"Modified"},"id":"CVE-2026-2006","imported":"2026-07-17T22:08:15.380Z","modified":"2026-07-15T02:19:26.810Z","published":"2026-02-12T14:16:02.470Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-2006"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:19009"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:19010"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:3730"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:3887"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:3896"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4024"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4059"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4063"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4064"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4074"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4075"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4110"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4254"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4441"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4475"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4504"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4505"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4506"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4509"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4515"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4516"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4518"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4524"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4528"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4544"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4546"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4547"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4548"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:4943"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:8756"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-2006"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2439324"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2006.json"},{"type":"WEB","url":"https://www.postgresql.org/support/security/CVE-2026-2006/"}],"affected":[{"package":{"name":"LibPQ_jll","ecosystem":"Julia","purl":"pkg:julia/LibPQ_jll?uuid=08be9ffa-1c94-5ee5-a977-46a84ec9b350"},"ranges":[{"type":"SEMVER","events":[{"introduced":"14.1.0+0"},{"fixed":"16.13.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-56.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}