{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-32676 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-32676 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-32676 is a medium-severity authentication bypass vulnerability in nextcloud security-advisories, published on 16 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-32676 and fix it if it is affected.\n\nWhat it is: CVE-2021-32676 is a medium-severity authentication bypass vulnerability in nextcloud security-advisories, published on 16 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-32676 in the wild and no public exploit code.\n\nAffected product: nextcloud security-advisories. 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-2021-32676/ (Markdown: https://insights.sbomify.com/CVE-2021-32676/index.md)","id":"CVE-2021-32676","markdown":"https://insights.sbomify.com/CVE-2021-32676/index.md","name":"CVE-2021-32676","record":{"aliases":["GHSA-p6h7-84v4-827r"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Nextcloud Talk","requires_auth":"low_privilege","summary":"Attackers can hijack user sessions in password-protected Nextcloud Talk chats due to missing session cookie rotation after authentication.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"talk","vendor":"nextcloud"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-384","name":"Session Fixation"}],"description":"Nextcloud Talk is a fully on-premises audio/video and chat communication service. Password protected shared chats in Talk before version 9.0.10, 10.0.8 and 11.2.2 did not rotate the session cookie after a successful authentication event. It is recommended that the Nextcloud Talk App is upgraded to 9.0.10, 10.0.8 or 11.2.2. No workarounds for this vulnerability are known to exist.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Session Fixation in Nextcloud Talk","id":"CVE-2021-32676","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Cross-Site Request Forgery (CSRF) in FastAPI","id":"CVE-2021-32677"},"packages":[],"prev":{"headline":"DoS vulnerability in Redis","id":"CVE-2021-32675"},"products":["security-advisories"],"published":"2021-06-16","related":[{"cvss_score":9.9,"headline":"Code injection in Nextcloud Talk","id":"CVE-2020-8180","kev_date_added":null,"published":"2020-06-08"},{"cvss_score":8.1,"headline":"Nextcloud Talk not properly disassociating users from chats after account deletion","id":"CVE-2021-32689","kev_date_added":null,"published":"2021-07-12"},{"cvss_score":7.2,"headline":"Path traversal allows tricking the Talk Android app into writing files into it's root directory","id":"CVE-2023-39957","kev_date_added":null,"published":"2023-08-10"},{"cvss_score":6.4,"headline":"XSS in Talk","id":"CVE-2021-39222","kev_date_added":null,"published":"2021-11-15"},{"cvss_score":5.4,"headline":"Cross-site scripting in nextcloud/talk","id":"CVE-2018-3781","kev_date_added":null,"published":"2018-08-13"},{"cvss_score":4.7,"headline":"Geolocation preview links can be set to arbitrary links in nextcloud talk","id":"CVE-2021-41180","kev_date_added":null,"published":"2022-03-08"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["nextcloud"]},"summary":"Attackers can hijack user sessions in password-protected Nextcloud Talk chats due to missing session cookie rotation after authentication.","url":"https://insights.sbomify.com/CVE-2021-32676/"}