{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-48579 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-48579 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-48579 is a critical missing authorization vulnerability in Microsoft Exchange Online, published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-48579 and fix it if it is affected.\n\nWhat it is: CVE-2026-48579 is a critical missing authorization vulnerability in Microsoft Exchange Online, published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-48579 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-2026-48579/ (Markdown: https://insights.sbomify.com/CVE-2026-48579/index.md)","id":"CVE-2026-48579","markdown":"https://insights.sbomify.com/CVE-2026-48579/index.md","name":"CVE-2026-48579","record":{"aliases":["GHSA-jwv5-9w8q-m2j8"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Microsoft Exchange Online","requires_auth":"none","summary":"An unauthorized attacker can disclose information over the network due to improper authorization in Microsoft Exchange Online.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"exchange_online","vendor":"microsoft"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-285","name":"Improper Authorization"}],"description":"Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Microsoft Exchange Online Information Disclosure Vulnerability","id":"CVE-2026-48579","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Microsoft Excel Information Disclosure Vulnerability","id":"CVE-2026-48580"},"packages":[],"prev":{"headline":"Secure Boot Security Feature Bypass Vulnerability","id":"CVE-2026-48578"},"products":["Microsoft Exchange Online"],"published":"2026-06-04","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":8.8,"headline":"Microsoft Exchange Online Elevation of Privilege Vulnerability","id":"CVE-2026-54998","kev_date_added":null,"published":"2026-07-02"}],"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)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-24","vendors":["Microsoft"]},"summary":"An unauthorized attacker can disclose information over the network due to improper authorization in Microsoft Exchange Online.","url":"https://insights.sbomify.com/CVE-2026-48579/"}