{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-45108 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-45108 is a high-severity authentication bypass vulnerability in himmelblau-idm himmelblau, published on 27 May 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-45108 and fix it if it is affected.\n\nWhat it is: CVE-2026-45108 is a high-severity authentication bypass vulnerability in himmelblau-idm himmelblau, published on 27 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-45108 in the wild and no public exploit code.\n\nAffected product: himmelblau-idm himmelblau. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-45108/ (Markdown: https://insights.sbomify.com/CVE-2026-45108/index.md)","id":"CVE-2026-45108","markdown":"https://insights.sbomify.com/CVE-2026-45108/index.md","name":"CVE-2026-45108","record":{"aliases":["GHSA-pmxh-j4r6-88mv","SUSE-SU-2026:22186-1","openSUSE-SU-2026:21111-1"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["privilege_escalation","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Azure Entra ID integration","requires_auth":"low_privilege","summary":"An attacker can impersonate another user to gain a local Unix session by exploiting a username validation flaw in the Device Authorization Grant flow.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.4,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. From 2.0.0 to before 3.1.5 and 2.3.11, Himmelblau contained an authentication bypass vulnerability in the Device Authorization Grant (DAG) flow that allowed a user within the same Entra ID domain to obtain a local Unix session as another user by providing their own valid credentials. The vulnerability existed in the token_validate function, which validated domain aliases for legitimate multi-domain scenarios but failed to verify that the local part (username) of the authenticated user's UPN matched the requested account username. The function only compared domains, not the complete usernames. This vulnerability is fixed in 3.1.5 and 2.3.11.","ecosystems":["SUSE:Linux Enterprise Server 16.0","SUSE:Linux Enterprise Server for SAP applications 16.0","openSUSE:Leap 16.0"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Himmelblau: Authentication Bypass via Cross-User Local Session Impersonation in Device Authorization Grant (DAG) Flow","id":"CVE-2026-45108","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"Next.js: Middleware / Proxy bypass in App Router applications via segment-prefetch routes","id":"CVE-2026-45109"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Server 16.0","fixed":["2.3.11+git1.116c6763-160000.1.1"],"introduced":["0"],"last_affected":[],"package":"himmelblau","purl":"pkg:rpm/suse/himmelblau\u0026distro=SUSE%20Linux%20Enterprise%20Server%2016.0","source":"SUSE-SU-2026:22186-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","fixed":["2.3.11+git1.116c6763-160000.1.1"],"introduced":["0"],"last_affected":[],"package":"himmelblau","purl":"pkg:rpm/suse/himmelblau\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0","source":"SUSE-SU-2026:22186-1"},{"ecosystem":"openSUSE:Leap 16.0","fixed":["2.3.11+git1.116c6763-160000.1.1"],"introduced":["0"],"last_affected":[],"package":"himmelblau","purl":"pkg:rpm/opensuse/himmelblau\u0026distro=openSUSE%20Leap%2016.0","source":"openSUSE-SU-2026:21111-1"}],"prev":{"headline":"Weblate: Stored HTML injection in editor search preview","id":"CVE-2026-45106"},"products":["himmelblau"],"published":"2026-05-27","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-28","vendors":["himmelblau-idm"]},"summary":"An attacker can impersonate another user to gain a local Unix session by exploiting a username validation flaw in the Device Authorization Grant flow.","url":"https://insights.sbomify.com/CVE-2026-45108/"}