{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-4881 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-4881 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-4881 is a medium-severity missing authorization vulnerability in Octopus Octopus Server, published on 4 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-4881 and fix it if it is affected.\n\nWhat it is: CVE-2026-4881 is a medium-severity missing authorization vulnerability in Octopus Octopus Server, published on 4 Jun 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-2026-4881 in the wild and no public exploit code.\n\nAffected product: Octopus Octopus Server. 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-2026-4881/ (Markdown: https://insights.sbomify.com/CVE-2026-4881/index.md)","id":"CVE-2026-4881","markdown":"https://insights.sbomify.com/CVE-2026-4881/index.md","name":"CVE-2026-4881","record":{"aliases":["GHSA-hw3f-962q-p4vj"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["privilege_escalation","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Octopus Server","requires_auth":"low_privilege","summary":"Authenticated users can modify server-level settings via an API endpoint despite receiving an error, bypassing intended permission checks.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Octopus","cpe":[{"product":"octopus_server","vendor":"octopus"}],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"In affected versions of Octopus Server, permissions were not checked correctly resulting in any authenticated user being able to make server level changes using a certain API endpoint despite receiving an error.","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":"Missing authorization in Octopus Server","id":"CVE-2026-4881","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"octopus:octopus_server","products":["octopus:octopus_server"],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"User Registration Advanced Fields \u003c= 1.6.20 - Unauthenticated Arbitrary File Upload","id":"CVE-2026-4882"},"packages":[],"prev":{"headline":"Barcode Scanner (+Mobile App) \u003c= 1.11.0 - Unauthenticated Privilege Escalation via Insecure Token Authentication","id":"CVE-2026-4880"},"products":["Octopus Server"],"published":"2026-06-04","related":[{"cvss_score":9.8,"headline":"Auth bypass in Octopus Server","id":"CVE-2022-2572","kev_date_added":null,"published":"2022-11-01"},{"cvss_score":9.8,"headline":"Security feature bypass in Octopus Server","id":"CVE-2022-2778","kev_date_added":null,"published":"2022-09-30"},{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2018-11320","kev_date_added":null,"published":"2018-05-21"},{"cvss_score":9.1,"headline":"Auth bypass in Octopus Server","id":"CVE-2022-2782","kev_date_added":null,"published":"2022-10-26"},{"cvss_score":8.8,"headline":"Race condition in Octopus Server","id":"CVE-2024-2975","kev_date_added":null,"published":"2024-04-09"},{"cvss_score":8.8,"headline":"Command injection in Octopus Server","id":"CVE-2022-4009","kev_date_added":null,"published":"2023-03-16"},{"cvss_score":8.8,"headline":"Code injection in n/a","id":"CVE-2018-18850","kev_date_added":null,"published":"2018-10-31"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-04","vendors":["Octopus Deploy"]},"summary":"Authenticated users can modify server-level settings via an API endpoint despite receiving an error, bypassing intended permission checks.","url":"https://insights.sbomify.com/CVE-2026-4881/"}