{"id":"CVE-2026-67591","aliases":["DEBIAN-CVE-2026-67591","EUVD-2026-53089","GHSA-xcxh-hgpq-crj6","UBUNTU-CVE-2026-67591"],"status":"published","title":"Apache Qpid ProtonJ2: Incoming session flow control window can be exceeded","description":"An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to version 1.2.0, which fixes the issue.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00653,"percentile":0.51732,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2026-08-05T05:38:26Z","modified":"2026-10-28T02:31:01Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"qpid-proton","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7-2","0.10-2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"qpid-proton","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.14.0-5.1","0.14.0-5.1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"qpid-proton","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.22.0-3.2","0.22.0-3.2build1","0.22.0-3.3","0.22.0-3.3build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"qpid-proton","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.22.0-5.1","0.22.0-5.1build1","0.22.0-5.1ubuntu1","0.22.0-5.1ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"qpid-proton","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.37.0-2build1","0.37.0-2build2","0.37.0-2build4","0.37.0-2build5"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"qpid-proton","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.37.0-7build1","0.37.0-8","0.37.0-9","0.37.0-9build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"qpid-proton","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.37.0-6","0.37.0-6build1","0.37.0-7","0.37.0-7build1"]}],"products":[{"vendor":"apache","product":"qpid_protonj2"},{"vendor":"apache software foundation","product":"apache qpid protonj2"}],"references":[{"url":"https://lists.apache.org/thread/rwmggh2bkm6qotxpdfcplht3jgw5n036","tags":["vendor-advisory","Mailing List","Vendor Advisory","advisory","report"]},{"url":"http://www.openwall.com/lists/oss-security/2026/08/04/30","tags":["Mailing List","Third Party Advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67591","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-xcxh-hgpq-crj6"},{"url":"https://repo.maven.apache.org/maven2","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67591.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-67591","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-67591","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-67591","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-67591","title":"Apache Qpid ProtonJ2: Incoming session flow control window can be exceeded","description":"An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to version 1.2.0, which fixes the issue.","status":"published","published":"2026-08-05T05:38:26.147Z","modified":"2026-08-06T15:16:01.15Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:20:06.562031Z"}],"euvd":[{"id":"EUVD-2026-53089","description":"An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to version 1.2.0, which fixes the issue.","status":"published","published":"2026-08-05T05:38:26Z","modified":"2026-08-06T15:16:01Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T18:02:08.101336Z"}],"ghsa":[{"id":"GHSA-xcxh-hgpq-crj6","title":"An authenticated attacker could exceed the session flow control incoming window potentially...","description":"An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to version 1.2.0, which fixes the issue.","status":"published","published":"2026-08-05T09:31:15Z","modified":"2026-08-06T18:31:37Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:10:10.387883Z"}],"nvd":[{"id":"CVE-2026-67591","description":"An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to version 1.2.0, which fixes the issue.","status":"published","published":"2026-08-05T07:16:38.737Z","modified":"2026-10-24T16:10:00.153Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:12:35.031043Z"}],"osv":[{"id":"CVE-2026-67591","title":"Apache Qpid ProtonJ2: Incoming session flow control window can be exceeded","description":"An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to version 1.2.0, which fixes the issue.","status":"published","published":"2026-08-05T05:38:26.147Z","modified":"2026-10-28T02:31:01.113871625Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:45:14.46177Z"},{"id":"UBUNTU-CVE-2026-67591","description":"An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users are recommended to upgrade to version 1.2.0, which fixes the issue.","status":"published","published":"2026-08-05T07:16:00Z","modified":"2026-10-17T13:00:39.56214478Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:56:53.710209Z"},{"id":"DEBIAN-CVE-2026-67591","description":"An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.  This issue affects Apache Qpid ProtonJ2: through 1.1.0.  Users are recommended to upgrade to version 1.2.0, which fixes the issue.","status":"withdrawn","published":"2026-08-05T07:16:38.737Z","modified":"2026-08-06T20:00:37.024299783Z","updated_at":"2026-11-02T15:46:01.68444Z"}]}}