{"id":"JLSEC-2026-45","details":"A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.","modified":"2026-04-03T13:31:06.024182Z","published":"2026-04-03T13:27:15.647Z","upstream":["CVE-2023-5870"],"database_specific":{"sources":[{"imported":"2026-04-03T13:13:10.441Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-5870","published":"2023-12-10T18:15:07.643Z","id":"CVE-2023-5870","modified":"2025-11-04T20:17:14.013Z","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5870"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7545"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7579"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7580"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7581"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7616"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7656"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7666"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7667"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7694"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7695"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7714"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7770"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7772"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7784"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7785"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7883"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7884"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7885"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2024:0304"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2024:0332"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2024:0337"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2023-5870"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2247170"},{"type":"WEB","url":"https://www.postgresql.org/about/news/postgresql-161-155-1410-1313-1217-and-1122-released-2749/"},{"type":"WEB","url":"https://www.postgresql.org/support/security/CVE-2023-5870/"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7545"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7579"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7580"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7581"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7616"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7656"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7666"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7667"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7694"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7695"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7714"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7770"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7772"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7784"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7785"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7883"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7884"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2023:7885"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2024:0304"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2024:0332"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2024:0337"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2023-5870"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2247170"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00007.html"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20240119-0003/"},{"type":"WEB","url":"https://www.postgresql.org/about/news/postgresql-161-155-1410-1313-1217-and-1122-released-2749/"},{"type":"WEB","url":"https://www.postgresql.org/support/security/CVE-2023-5870/"}],"affected":[{"package":{"name":"LibPQ_jll","ecosystem":"Julia","purl":"pkg:julia/LibPQ_jll?uuid=08be9ffa-1c94-5ee5-a977-46a84ec9b350"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"16.8.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-45.json"}}],"schema_version":"1.7.5"}