{"id":"CVE-2026-45049","aliases":["EUVD-2026-113394","GHSA-r9pv-5rpp-vm8g","UBUNTU-CVE-2026-45049"],"status":"published","title":"OpenAM Session Hijacking via CDSSO","description":"Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the `Cross-Domain Single Sign-On` (`CDSSO`) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. An attacker who induces an authenticated victim to visit a crafted URL can receive the session credential and potentially hijack the session. Deployments must have `CDSSO` enabled, as is common in multi-domain deployments, and exploitation is additionally gated on a non-default configuration being absent. This issue is fixed in version 16.1.1.","severity":{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00332,"percentile":0.26725,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-201"],"published":"2026-06-23T17:33:14Z","modified":"2026-11-04T01:49:05Z","fixes":[{"ecosystem":"Maven","package":"org.openidentityplatform.openam:openam-federation","fixed_in":["16.1.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.openidentityplatform.openam:openam-federation","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"16.0.6"},{"fixed":"16.1.1"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.openidentityplatform.openam:openam-federation","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.1.1"}]}],"versions":["14.5.2","14.5.3","14.5.4","14.6.1","14.6.2","14.6.3","14.6.4","14.6.5","14.6.6","14.7.0","14.7.1","14.7.2","14.7.3","14.7.4","14.8.1","14.8.2","14.8.3","14.8.4","15.0.0","15.0.1","15.0.2","15.0.3","15.0.4","15.1.0","15.1.1","15.1.2","15.1.3","15.1.4","15.1.5","15.1.6","15.2.0","15.2.1","15.2.2","16.0.1","16.0.2","16.0.3","16.0.4","16.0.5","16.0.6","16.1.0"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"openam","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.0-1build6"]}],"products":[{"vendor":"openidentityplatform","product":"openam"}],"references":[{"url":"https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-r9pv-5rpp-vm8g","tags":["x_refsource_CONFIRM","advisory","web","report"]},{"url":"https://github.com/OpenIdentityPlatform/OpenAM/commit/bda647f8540d8fb28aaaed716914692678c5a0a7","tags":["x_refsource_MISC","fix","web","report"]},{"url":"https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1","tags":["x_refsource_MISC","web","report"]},{"url":"https://github.com/advisories/GHSA-r9pv-5rpp-vm8g"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45049.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45049","tags":["advisory"]},{"url":"https://github.com/OpenIdentityPlatform/OpenAM","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-45049","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45049","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-45049","title":"OpenAM Session Hijacking via CDSSO","description":"Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the `Cross-Domain Single Sign-On` (`CDSSO`) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. An attacker who induces an authenticated victim to visit a crafted URL can receive the session credential and potentially hijack the session. Deployments must have `CDSSO` enabled, as is common in multi-domain deployments, and exploitation is additionally gated on a non-default configuration being absent. This issue is fixed in version 16.1.1.","status":"published","published":"2026-10-29T21:13:55.74Z","modified":"2026-11-04T01:49:05.356Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-201"],"updated_at":"2026-11-04T02:49:29.029968Z"}],"euvd":[{"id":"EUVD-2026-113394","description":"Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the `Cross-Domain Single Sign-On` (`CDSSO`) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. An attacker who induces an authenticated victim to visit a crafted URL can receive the session credential and potentially hijack the session. Deployments must have `CDSSO` enabled, as is common in multi-domain deployments, and exploitation is additionally gated on a non-default configuration being absent. This issue is fixed in version 16.1.1.","status":"published","published":"2026-10-29T21:13:55Z","modified":"2026-11-04T01:49:05Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-04T03:57:29.097782Z"}],"ghsa":[{"id":"GHSA-r9pv-5rpp-vm8g","title":"OpenAM Unauthenticated Session Hijacking via Information Exposure in CDCServlet","description":"## Summary\n\n**Description**\n\nAn Information Exposure Through Sent Data (CWE-201) issue in OpenAM's Cross-Domain Single Sign-On (CDSSO) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. This impacts OpenAM Community Edition through version 16.0.6. This issue was patched in version 16.1.1.\n\nAn attacker who can induce a logged-in victim to visit a crafted URL may receive the victim's session credential, which could enable session hijacking.\n\n## Impact\nOpenAM deployments through version 16.0.6 that have CDSSO enabled are potentially affected. The CDSSO component is commonly enabled in multi-domain deployments. Exploitation requires user interaction — an authenticated user must be induced to visit an attacker-crafted URL — and is further gated on a non-default configuration being absent.\n\n## Patch\nThis has been patched in OpenAM Community Edition version 16.1.1. Users are encouraged to update to the latest release.","status":"published","published":"2026-06-23T17:33:14Z","modified":"2026-10-28T15:30:45Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-201"],"updated_at":"2026-11-02T14:41:38.969831Z"}],"nvd":[{"id":"CVE-2026-45049","description":"Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the `Cross-Domain Single Sign-On` (`CDSSO`) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. An attacker who induces an authenticated victim to visit a crafted URL can receive the session credential and potentially hijack the session. Deployments must have `CDSSO` enabled, as is common in multi-domain deployments, and exploitation is additionally gated on a non-default configuration being absent. This issue is fixed in version 16.1.1.","status":"published","published":"2026-10-29T22:17:02.4Z","modified":"2026-11-04T02:17:20.7Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-201"],"updated_at":"2026-11-04T06:53:34.694679Z"}],"osv":[{"id":"CVE-2026-45049","title":"OpenAM Session Hijacking via CDSSO","description":"Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the `Cross-Domain Single Sign-On` (`CDSSO`) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. An attacker who induces an authenticated victim to visit a crafted URL can receive the session credential and potentially hijack the session. Deployments must have `CDSSO` enabled, as is common in multi-domain deployments, and exploitation is additionally gated on a non-default configuration being absent. This issue is fixed in version 16.1.1.","status":"published","published":"2026-10-29T21:13:55.74Z","modified":"2026-11-05T19:02:52.671564816Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-201"],"updated_at":"2026-11-05T19:27:31.887219Z"},{"id":"GHSA-r9pv-5rpp-vm8g","title":"OpenAM Unauthenticated Session Hijacking via Information Exposure in CDCServlet","description":"## Summary\n\n**Description**\n\nAn Information Exposure Through Sent Data (CWE-201) issue in OpenAM's Cross-Domain Single Sign-On (CDSSO) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. This impacts OpenAM Community Edition through version 16.0.6. This issue was patched in version 16.1.1.\n\nAn attacker who can induce a logged-in victim to visit a crafted URL may receive the victim's session credential, which could enable session hijacking.\n\n## Impact\nOpenAM deployments through version 16.0.6 that have CDSSO enabled are potentially affected. The CDSSO component is commonly enabled in multi-domain deployments. Exploitation requires user interaction — an authenticated user must be induced to visit an attacker-crafted URL — and is further gated on a non-default configuration being absent.\n\n## Patch\nThis has been patched in OpenAM Community Edition version 16.1.1. Users are encouraged to update to the latest release.","status":"published","published":"2026-06-23T17:33:14Z","modified":"2026-10-28T15:45:11.004943239Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-201"],"updated_at":"2026-11-02T15:46:55.480549Z"},{"id":"UBUNTU-CVE-2026-45049","description":"Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the `Cross-Domain Single Sign-On` (`CDSSO`) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. An attacker who induces an authenticated victim to visit a crafted URL can receive the session credential and potentially hijack the session. Deployments must have `CDSSO` enabled, as is common in multi-domain deployments, and exploitation is additionally gated on a non-default configuration being absent. This issue is fixed in version 16.1.1.","status":"published","published":"2026-10-29T22:17:00Z","modified":"2026-11-05T04:28:18Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-05T13:33:42.748455Z"}]}}