{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-25742",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-02-05T16:48:00.428Z",
        "datePublished": "2026-04-03T20:12:07.296Z",
        "dateUpdated": "2026-04-08T18:53:28.819Z"
    },
    "containers": {
        "cna": {
            "title": "Zulip: Anonymous File Access After Disabling Spectator Access",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-862",
                            "lang": "en",
                            "description": "CWE-862: Missing Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/zulip/zulip/security/advisories/GHSA-f47p-xjqq-g28w",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/zulip/zulip/security/advisories/GHSA-f47p-xjqq-g28w"
                },
                {
                    "name": "https://github.com/zulip/zulip/commit/3c045414299680b9f5dca7d76cf6cef6121c0236",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/zulip/zulip/commit/3c045414299680b9f5dca7d76cf6cef6121c0236"
                },
                {
                    "name": "https://github.com/zulip/zulip/commit/41e23347b5218b3b0397a55176c7d97396735bae",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/zulip/zulip/commit/41e23347b5218b3b0397a55176c7d97396735bae"
                },
                {
                    "name": "https://github.com/zulip/zulip/releases/tag/11.6",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/zulip/zulip/releases/tag/11.6"
                }
            ],
            "affected": [
                {
                    "vendor": "zulip",
                    "product": "zulip",
                    "versions": [
                        {
                            "version": "< 11.6",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-04-03T20:12:07.296Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Zulip is an open-source team collaboration tool. Prior to version 11.6, Zulip is an open-source team collaboration tool. From version 1.4.0 to before version 11.6, even after spectator access (enable_spectator_access / WEB_PUBLIC_STREAMS_ENABLED) is disabled, attachments originating from web-public streams can still be retrieved anonymously. As a result, file contents remain accessible even after public access is intended to be disabled. Similarly, even after spectator access is disabled, the /users/me/<stream_id>/topics endpoint remains reachable anonymously, allowing retrieval of topic history for web-public streams. This issue has been patched in version 11.6. This issue has been patched in version 11.6."
                }
            ],
            "source": {
                "advisory": "GHSA-f47p-xjqq-g28w",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/zulip/zulip/security/advisories/GHSA-f47p-xjqq-g28w",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-08T18:53:23.592418Z",
                                "id": "CVE-2026-25742",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-04-08T18:53:28.819Z"
                }
            }
        ]
    }
}