{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-54998 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-54998 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-54998 is a high-severity vulnerability in Microsoft Exchange Online, published on 2 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-54998 and fix it if it is affected.\n\nWhat it is: CVE-2026-54998 is a high-severity vulnerability in Microsoft Exchange Online, published on 2 Jul 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-2026-54998 in the wild and no public exploit code.\n\nAffected product: Microsoft Exchange Online. 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-2026-54998/ (Markdown: https://insights.sbomify.com/CVE-2026-54998/index.md)","id":"CVE-2026-54998","markdown":"https://insights.sbomify.com/CVE-2026-54998/index.md","name":"CVE-2026-54998","record":{"aliases":["GHSA-phr2-vr74-whpx"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Exchange Online","requires_auth":"low_privilege","summary":"An authorized attacker can elevate privileges in Microsoft Exchange Online due to incorrect authorization checks.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"exchange_online","vendor":"microsoft"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-07-04","github_poc":1,"max_poc_stars":3,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-07-04T22:34:19Z","kind":"github_poc","ref":"https://github.com/sentinel-aidefense/CVE-2026-54998-exp","stars":3,"title":"CVE-2026-54998 RCE Exploit"}],"tier":"poc_unverified"},"has_fix":null,"headline":"Microsoft Exchange Online Elevation of Privilege Vulnerability","id":"CVE-2026-54998","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Windows TCP/IP Remote Code Execution Vulnerability","id":"CVE-2026-54999"},"packages":[],"prev":{"headline":"Windows SMB Information Disclosure Vulnerability","id":"CVE-2026-54997"},"products":["Microsoft Exchange Online"],"published":"2026-07-02","related":[{"cvss_score":10,"headline":"Microsoft Exchange Online Elevation of Privilege Vulnerability","id":"CVE-2026-65801","kev_date_added":null,"published":"2026-08-20"},{"cvss_score":10,"headline":"Microsoft Exchange Online Tampering Vulnerability","id":"CVE-2026-56191","kev_date_added":null,"published":"2026-07-24"},{"cvss_score":9.6,"headline":"Microsoft Exchange Online Elevation of Privilege Vulnerability","id":"CVE-2026-48582","kev_date_added":null,"published":"2026-06-19"},{"cvss_score":9.1,"headline":"Microsoft Exchange Online Information Disclosure Vulnerability","id":"CVE-2026-48579","kev_date_added":null,"published":"2026-06-04"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["Microsoft"]},"summary":"An authorized attacker can elevate privileges in Microsoft Exchange Online due to incorrect authorization checks.","url":"https://insights.sbomify.com/CVE-2026-54998/"}