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vuln-cve/data/2026/25xxx/CVE-2026-25742.json
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{
"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"
}
}
]
}
}