{"schemaVersion":3,"id":"RHSA-2026:39809","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0 (erlang) security update","dates":{"published":"2026-07-16T10:10:35.000Z","modified":"2026-09-22T10:12:20.000Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N","computed":true,"selection":"version-preference"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","score":8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N","exploitability":4.1,"impact":9.7,"computed":true}]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"redhat","product":"erlang","name":"erlang","label":"erlang","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-asn1","name":"erlang-asn1","label":"erlang-asn1","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-asn1","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-asn1-debuginfo","name":"erlang-asn1-debuginfo","label":"erlang-asn1-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-asn1-debuginfo","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-compiler","name":"erlang-compiler","label":"erlang-compiler","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-compiler","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-crypto","name":"erlang-crypto","label":"erlang-crypto","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-crypto","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-crypto-debuginfo","name":"erlang-crypto-debuginfo","label":"erlang-crypto-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-crypto-debuginfo","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-debuginfo","name":"erlang-debuginfo","label":"erlang-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-debuginfo","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-debugsource","name":"erlang-debugsource","label":"erlang-debugsource","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-debugsource","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-eldap","name":"erlang-eldap","label":"erlang-eldap","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-eldap","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-erl_interface-debuginfo","name":"erlang-erl_interface-debuginfo","label":"erlang-erl_interface-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-erl_interface-debuginfo","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-erts","name":"erlang-erts","label":"erlang-erts","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-erts","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-erts-debuginfo","name":"erlang-erts-debuginfo","label":"erlang-erts-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-erts-debuginfo","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-gdb-tools-debuginfo","name":"erlang-gdb-tools-debuginfo","label":"erlang-gdb-tools-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-gdb-tools-debuginfo","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-inets","name":"erlang-inets","label":"erlang-inets","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-inets","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-kernel","name":"erlang-kernel","label":"erlang-kernel","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-kernel","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-mnesia","name":"erlang-mnesia","label":"erlang-mnesia","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-mnesia","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-odbc-debuginfo","name":"erlang-odbc-debuginfo","label":"erlang-odbc-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-odbc-debuginfo","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-os_mon","name":"erlang-os_mon","label":"erlang-os_mon","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-os_mon","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-os_mon-debuginfo","name":"erlang-os_mon-debuginfo","label":"erlang-os_mon-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-os_mon-debuginfo","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-parsetools","name":"erlang-parsetools","label":"erlang-parsetools","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-parsetools","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-public_key","name":"erlang-public_key","label":"erlang-public_key","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-public_key","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-runtime_tools","name":"erlang-runtime_tools","label":"erlang-runtime_tools","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-runtime_tools","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-runtime_tools-debuginfo","name":"erlang-runtime_tools-debuginfo","label":"erlang-runtime_tools-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-runtime_tools-debuginfo","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-sasl","name":"erlang-sasl","label":"erlang-sasl","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-sasl","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-snmp","name":"erlang-snmp","label":"erlang-snmp","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-snmp","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-ssl","name":"erlang-ssl","label":"erlang-ssl","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-ssl","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-stdlib","name":"erlang-stdlib","label":"erlang-stdlib","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-stdlib","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-syntax_tools","name":"erlang-syntax_tools","label":"erlang-syntax_tools","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-syntax_tools","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-tools","name":"erlang-tools","label":"erlang-tools","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-tools","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null},{"vendor":"redhat","product":"erlang-xmerl","name":"erlang-xmerl","label":"erlang-xmerl","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/erlang-xmerl","purlType":"rpm","versions":[{"text":"< 0:26.2.5.21-2.el9ost","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:26.2.5.21-2.el9ost","eol":null,"hubHref":null}],"affectedCount":30,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:39809","label":"access.redhat.com/errata/RHSA-2026:39809","hostname":"access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","label":"access.redhat.com/security/updates/classification/","hostname":"access.redhat.com","tags":["ARTICLE"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482093","label":"bugzilla.redhat.com/show_bug.cgi?id=2482093","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482286","label":"bugzilla.redhat.com/show_bug.cgi?id=2482286","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_39809.json","label":"security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_39809.json","hostname":"security.access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-42789","label":"access.redhat.com/security/cve/CVE-2026-42789","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-42789","label":"www.cve.org/CVERecord?id=CVE-2026-42789","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42789","label":"nvd.nist.gov/vuln/detail/CVE-2026-42789","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://cna.erlef.org/cves/CVE-2026-42789.html","label":"cna.erlef.org/cves/CVE-2026-42789.html","hostname":"cna.erlef.org","tags":["ARTICLE"]},{"url":"https://github.com/erlang/otp/commit/471cd2f664300a95353c467873800bbe706005db","label":"github.com/erlang/otp/commit/471cd2f664300a95353c467873800bbe706005db","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://github.com/erlang/otp/commit/59c8d824386b2eb1614ff9340624843ef6aca0fd","label":"github.com/erlang/otp/commit/59c8d824386b2eb1614ff9340624843ef6aca0fd","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://github.com/erlang/otp/security/advisories/GHSA-c99q-jmpx-v8qq","label":"github.com/erlang/otp/security/advisories/GHSA-c99q-jmpx-v8qq","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://osv.dev/vulnerability/EEF-CVE-2026-42789","label":"osv.dev/vulnerability/EEF-CVE-2026-42789","hostname":"osv.dev","tags":["ARTICLE"]},{"url":"https://www.erlang.org/doc/system/versions.html#order-of-versions","label":"www.erlang.org/doc/system/versions.html","hostname":"www.erlang.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-42790","label":"access.redhat.com/security/cve/CVE-2026-42790","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-42790","label":"www.cve.org/CVERecord?id=CVE-2026-42790","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42790","label":"nvd.nist.gov/vuln/detail/CVE-2026-42790","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://cna.erlef.org/cves/CVE-2026-42790.html","label":"cna.erlef.org/cves/CVE-2026-42790.html","hostname":"cna.erlef.org","tags":["ARTICLE"]},{"url":"https://github.com/erlang/otp/commit/0769050c69d73762672b0db1347b6993a5b31759","label":"github.com/erlang/otp/commit/0769050c69d73762672b0db1347b6993a5b31759","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://github.com/erlang/otp/commit/21abed64eb2026b5f82f432709e4e932f9be389a","label":"github.com/erlang/otp/commit/21abed64eb2026b5f82f432709e4e932f9be389a","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://github.com/erlang/otp/commit/fb67c6d1836f51105a96d8b769e71e4215a79457","label":"github.com/erlang/otp/commit/fb67c6d1836f51105a96d8b769e71e4215a79457","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://github.com/erlang/otp/security/advisories/GHSA-22cw-4ph4-6447","label":"github.com/erlang/otp/security/advisories/GHSA-22cw-4ph4-6447","hostname":"github.com","tags":["ARTICLE"]},{"url":"https://osv.dev/vulnerability/EEF-CVE-2026-42790","label":"osv.dev/vulnerability/EEF-CVE-2026-42790","hostname":"osv.dev","tags":["ARTICLE"]}],"lineage":{"upstream":["CVE-2026-42789","CVE-2026-42790"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-07-16T10:10:35.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-22T10:12:20.000Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":32,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T21:27:07.991Z","stale":false,"partial":false}}