{"answers":{"affected":"1 open source package ship an affected version, including nextcloud.","exploited":"There is no known exploitation of CVE-2026-68493 in the wild and no public exploit code.","fix":"Upgrade nextcloud to 34.0.1 or later.","what":"CVE-2026-68493 is a low-severity vulnerability in Nextcloud Server, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-68493 and fix it if it is affected.\n\nWhat it is: CVE-2026-68493 is a low-severity vulnerability in Nextcloud Server, published on 18 Sep 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-2026-68493 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- nextcloud (Bitnami): affected from 32.0.0; fixed in 34.0.1\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-2026-68493/ (Markdown: https://insights.sbomify.com/CVE-2026-68493/index.md)","id":"CVE-2026-68493","markdown":"https://insights.sbomify.com/CVE-2026-68493/index.md","name":"CVE-2026-68493","record":{"aliases":["BIT-nextcloud-2026-68493","GHSA-f3xf-5g94-7q62","MINI-m4jm-w3p4-j49c"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Nextcloud Server","requires_auth":"low_privilege","summary":"A malicious logged-in user can retrieve membership lists for circles they do not belong to by guessing unique identifiers.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[],"cvss":{"score":3.1,"severity":"low","source":"cna","vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.0"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"After guessing a 62^15 complex unique identifier, a malicious logged in user was able to retrieve a list of memberships for a circle they are not a member of.","ecosystems":["Bitnami"],"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":"Information disclosure in Server","id":"CVE-2026-68493","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":1,"n_references":1,"next":{"headline":"jackson-core: Async parser maxNumberLength bypass via chunked digit accumulation (incomplete fix for GHSA-72hv-8253-57qq)","id":"CVE-2026-68494"},"packages":[{"ecosystem":"Bitnami","fixed":["34.0.1"],"introduced":["32.0.0"],"last_affected":[],"package":"nextcloud","purl":"pkg:bitnami/nextcloud","source":"BIT-nextcloud-2026-68493"}],"prev":{"headline":"Path traversal in Plesk","id":"CVE-2026-68492"},"products":["Server"],"published":"2026-09-18","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-09-18","vendors":["Nextcloud"]},"summary":"A malicious logged-in user can retrieve membership lists for circles they do not belong to by guessing unique identifiers.","url":"https://insights.sbomify.com/CVE-2026-68493/"}