CVE-2022-21706

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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)."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "description": "CWE-863: Incorrect Authorization", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-284", "description": "CWE-284: Improper Access Control", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-02-25T23:25:10.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e"}, {"tags": ["x_refsource_MISC"], "url": "https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/"}, {"tags": ["x_refsource_MISC"], "url": "https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706"}], "source": {"advisory": "GHSA-6xmj-2wcm-p2jc", "discovery": "UNKNOWN"}, "title": "Multi-use invitations can grant access to other organizations in Zulip", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2022-21706", "STATE": "PUBLIC", "TITLE": "Multi-use invitations can grant access to other organizations in Zulip"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "zulip", "version": {"version_data": [{"version_value": ">= 2.0.0, < 4.10"}]}}]}, "vendor_name": "zulip"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Zulip is an open-source team collaboration tool with topic-based threading. 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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)."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "CWE-863: Incorrect Authorization"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-284", "description": "CWE-284: Improper Access Control"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2022-02-25T23:25:10.000Z"}, "x_legacyV4Record": {"impact": {"cvss": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, "source": {"advisory": "GHSA-6xmj-2wcm-p2jc", "discovery": "UNKNOWN"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": ">= 2.0.0, < 4.10"}]}, "product_name": "zulip"}]}, "vendor_name": "zulip"}]}}, "data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc", "name": "https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc", "refsource": "CONFIRM"}, {"url": "https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e", "name": "https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e", "refsource": "MISC"}, {"url": "https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/", "name": "https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/", "refsource": "MISC"}, {"url": "https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706", "name": "https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706", "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "Zulip is an open-source team collaboration tool with topic-based threading. 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Zulip Server versi\u00f3n 2.0.0 y superior, es vulnerable a un control de acceso insuficiente con invitaciones de uso m\u00faltiple. Un despliegue de Zulip Server que alberga m\u00faltiples organizaciones es vulnerable a un ataque en el que una invitaci\u00f3n creada en una organizaci\u00f3n (potencialmente como un rol con permisos elevados) puede ser usada para unirse a cualquier otra organizaci\u00f3n. Esto evita cualquier restricci\u00f3n de dominios requeridos en las direcciones de correo electr\u00f3nico de usuarios, puede ser usado para conseguir acceso a organizaciones a las que s\u00f3lo puede accederse por invitaci\u00f3n, y puede ser usado para conseguir acceso con altos privilegios. Este problema ha sido parcheado en versi\u00f3n 4.10. No se presentan medidas de mitigaci\u00f3n conocidas para este problema. ### Parches _\u00bfHa sido parcheado el problema? \u00bfA qu\u00e9 versiones deber\u00edan actualizarse los usuarios?_ ### Mitigaciones _\u00bfSe presenta alguna forma de que los usuarios mitiguen o remedien la vulnerabilidad sin necesidad de actualizarse?_## Referencias _\u00bfSe presenta alg\u00fan enlace que los usuarios puedan visitar para obtener m\u00e1s informaci\u00f3n?_## Para m\u00e1s informaci\u00f3n Si presenta alguna pregunta o comentario sobre este aviso, puede discutirlo en el [servidor de la comunidad de desarrolladores de Zulip](https://zulip.com/developer-community/), o enviar un correo electr\u00f3nico al [equipo de seguridad de Zulip](mailto:security@zulip.com).\n"}], "id": "CVE-2022-21706", "lastModified": "2026-06-17T04:26:48.440", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-21706", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-23T15:57:16.778351Z", "version": "2.0.3"}}]}, "published": "2022-02-26T00:15:08.260", "references": [{"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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