{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-21706 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2022-21706 yet. Limit exposure of the affected software until one is available.","what":"CVE-2022-21706 is a high-severity missing authorization vulnerability in zulip, published on 25 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-21706 and fix it if it is affected.\n\nWhat it is: CVE-2022-21706 is a high-severity missing authorization vulnerability in zulip, published on 25 Feb 2022. 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-2022-21706 in the wild and no public exploit code.\n\nAffected product: zulip. 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-2022-21706/ (Markdown: https://insights.sbomify.com/CVE-2022-21706/index.md)","id":"CVE-2022-21706","markdown":"https://insights.sbomify.com/CVE-2022-21706/index.md","name":"CVE-2022-21706","record":{"aliases":["GHSA-6xmj-2wcm-p2jc"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation","data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Zulip team collaboration","requires_auth":"none","summary":"Attackers can use multi-use invitations from one organization to gain unauthorized access and elevated privileges in other organizations within a multi-tenant Zulip deployment.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"zulip_server","vendor":"zulip"}],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"},{"id":"CWE-284","name":"Improper Access Control"}],"description":"Zulip is an open-source team collaboration tool with topic-based threading. Zulip Server version 2.0.0 and above are vulnerable to insufficient access control with multi-use invitations. A Zulip Server deployment which hosts multiple organizations is vulnerable to an attack where an invitation created in one organization (potentially as a role with elevated permissions) can be used to join any other organization. This bypasses any restrictions on required domains on users' email addresses, may be used to gain access to organizations which are only accessible by invitation, and may be used to gain access with elevated privileges. This issue has been patched in release 4.10. There are no known workarounds for this issue. ### Patches _Has the problem been patched? What versions should users upgrade to?_ ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ ### References _Are there any links users can visit to find out more?_ ### For more information If you have any questions or comments about this advisory, you can discuss them on the [developer community Zulip server](https://zulip.com/developer-community/), or email the [Zulip security team](mailto:security@zulip.com).","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":"Multi-use invitations can grant access to other organizations in Zulip","id":"CVE-2022-21706","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2022"},"n_packages":0,"n_references":4,"next":{"headline":"Incorrect Authorization in wasmCloud","id":"CVE-2022-21707"},"packages":[],"prev":{"headline":"Authenticated remote code execution in octobercms","id":"CVE-2022-21705"},"products":["zulip"],"published":"2022-02-25","related":[{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2019-18933","kev_date_added":null,"published":"2019-11-21"},{"cvss_score":8.8,"headline":"Code injection in n/a","id":"CVE-2020-15070","kev_date_added":null,"published":"2020-08-21"},{"cvss_score":8.8,"headline":"Missing authorization in Zulip Server","id":"CVE-2017-0910","kev_date_added":null,"published":"2017-11-27"},{"cvss_score":8.2,"headline":"Zulip Authentication Backend Configuration Bypass","id":"CVE-2025-31478","kev_date_added":null,"published":"2025-04-16"},{"cvss_score":8.2,"headline":"Cross-site scripting vulnerability in Zulip Server development branch via topic tooltip","id":"CVE-2023-33186","kev_date_added":null,"published":"2023-05-30"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2024-36612","kev_date_added":null,"published":"2024-11-29"},{"cvss_score":7.5,"headline":"Privilege escalation in n/a","id":"CVE-2020-14215","kev_date_added":null,"published":"2020-08-21"}],"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":"partial"},"state":"PUBLISHED","updated":"2025-04-23","vendors":["zulip"]},"summary":"Attackers can use multi-use invitations from one organization to gain unauthorized access and elevated privileges in other organizations within a multi-tenant Zulip deployment.","url":"https://insights.sbomify.com/CVE-2022-21706/"}