FKIE_CVE-2024-21630

Vulnerability from fkie_nvd - Published: 2024-01-25 20:15 - Updated: 2026-06-17 07:09
Severity
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Summary
Zulip is an open-source team collaboration tool. A vulnerability in version 8.0 is similar to CVE-2023-32677, but applies to multi-use invitations, not single-use invitation links as in the prior CVE. Specifically, it applies when the installation has configured non-admins to be able to invite users and create multi-use invitations, and has also configured only admins to be able to invite users to streams. As in CVE-2023-32677, this does not let users invite new users to arbitrary streams, only to streams that the inviter can already see. Version 8.1 fixes this issue. As a workaround, administrators can limit sending of invitations down to users who also have the permission to add users to streams.
References
security-advisories@github.comhttps://github.com/zulip/zulip/commit/0df7bd71f32f3b772e2646c6ab0d60c9b610addfPatch
security-advisories@github.comhttps://github.com/zulip/zulip/security/advisories/GHSA-87p9-wprh-7rm6Vendor Advisory
security-advisories@github.comhttps://github.com/zulip/zulip/security/advisories/GHSA-mrvp-96q6-jpvcVendor Advisory
security-advisories@github.comhttps://zulip.com/help/configure-who-can-invite-to-streamsProduct
security-advisories@github.comhttps://zulip.com/help/restrict-account-creation#change-who-can-send-invitationsProduct
af854a3a-2127-422b-91ae-364da2661108https://github.com/zulip/zulip/commit/0df7bd71f32f3b772e2646c6ab0d60c9b610addfPatch
af854a3a-2127-422b-91ae-364da2661108https://github.com/zulip/zulip/security/advisories/GHSA-87p9-wprh-7rm6Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/zulip/zulip/security/advisories/GHSA-mrvp-96q6-jpvcVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://zulip.com/help/configure-who-can-invite-to-streamsProduct
af854a3a-2127-422b-91ae-364da2661108https://zulip.com/help/restrict-account-creation#change-who-can-send-invitationsProduct
Impacted products
Vendor Product Version
zulip zulip_server *
zulip zulip_server *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "zulip",
          "vendor": "zulip",
          "versions": [
            {
              "status": "affected",
              "version": "= 8.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5D9282FA-F4D4-4667-ADC6-6A3C7C83BB52",
              "versionEndExcluding": "6.2",
              "versionStartIncluding": "1.9.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "85FB7719-4DA4-4E4A-B229-6827E35EEF32",
              "versionEndExcluding": "8.1",
              "versionStartIncluding": "8.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Zulip is an open-source team collaboration tool. A vulnerability in version 8.0 is similar to CVE-2023-32677, but applies to multi-use invitations, not single-use invitation links as in the prior CVE. Specifically, it applies when the installation has configured non-admins to be able to invite users and create multi-use invitations, and has also configured only admins to be able to invite users to streams. As in CVE-2023-32677, this does not let users invite new users to arbitrary streams, only to streams that the inviter can already see. Version 8.1 fixes this issue. As a workaround, administrators can limit sending of invitations down to users who also have the permission to add users to streams."
    },
    {
      "lang": "es",
      "value": "Zulip es una herramienta de colaboraci\u00f3n en equipo de c\u00f3digo abierto. Una vulnerabilidad en la versi\u00f3n 8.0 es similar a CVE-2023-32677, pero se aplica a invitaciones de usos m\u00faltiples, no a enlaces de invitaci\u00f3n de un solo uso como en el CVE anterior. Espec\u00edficamente, se aplica cuando la instalaci\u00f3n ha configurado no administradores para poder invitar a usuarios y crear invitaciones de usos m\u00faltiples, y tambi\u00e9n ha configurado solo administradores para poder invitar a usuarios a transmisiones. Al igual que en CVE-2023-32677, esto no permite a los usuarios invitar a nuevos usuarios a transmisiones arbitrarias, solo a transmisiones que quien invita ya puede ver. La versi\u00f3n 8.1 soluciona este problema. Como workaround, los administradores pueden limitar el env\u00edo de invitaciones a los usuarios que tambi\u00e9n tienen permiso para agregar usuarios a las transmisiones."
    }
  ],
  "id": "CVE-2024-21630",
  "lastModified": "2026-06-17T07:09:52.967",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-21630",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-05-08T15:52:52.338039Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-01-25T20:15:40.423",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/zulip/zulip/commit/0df7bd71f32f3b772e2646c6ab0d60c9b610addf"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/zulip/zulip/security/advisories/GHSA-87p9-wprh-7rm6"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/zulip/zulip/security/advisories/GHSA-mrvp-96q6-jpvc"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product"
      ],
      "url": "https://zulip.com/help/configure-who-can-invite-to-streams"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product"
      ],
      "url": "https://zulip.com/help/restrict-account-creation#change-who-can-send-invitations"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/zulip/zulip/commit/0df7bd71f32f3b772e2646c6ab0d60c9b610addf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/zulip/zulip/security/advisories/GHSA-87p9-wprh-7rm6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/zulip/zulip/security/advisories/GHSA-mrvp-96q6-jpvc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://zulip.com/help/configure-who-can-invite-to-streams"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://zulip.com/help/restrict-account-creation#change-who-can-send-invitations"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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