CVE-2026-47263

Source
https://cve.org/CVERecord?id=CVE-2026-47263
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47263.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-47263
Aliases
Published
2026-06-12T20:26:19.681Z
Modified
2026-07-08T08:13:40.823535485Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Discourse: Prevent webhook payload disclosure on event redelivery
Details

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, the MessageBus.publish call for /webhookevents/<id> in Jobs::RedeliverWebHookEvents did not pass groupids, leaving the channel readable by any authenticated user (or anonymous user on instances where loginrequired is disabled). Webhook IDs are sequential integers and trivially enumerable. This issue has been patched in versions 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47263.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-200"
    ]
}
References

Affected packages

Git / github.com/discourse/discourse

Affected ranges

Type
GIT
Repo
https://github.com/discourse/discourse
Events
Database specific
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "2026.1.0-latest"
        },
        {
            "fixed": "2026.1.4"
        },
        {
            "introduced": "2026.3.0-latest"
        },
        {
            "fixed": "2026.3.1"
        },
        {
            "introduced": "2026.4.0-latest"
        },
        {
            "fixed": "2026.4.1"
        }
    ]
}

Affected versions

2026.*
2026.5.0
Other
esr
stable
v2026.*
v2026.1.0
v2026.1.0-latest
v2026.1.1
v2026.1.2
v2026.1.3
v2026.3.0
v2026.3.0-latest
v2026.3.0-latest.1
v2026.4.0
v2026.4.0-latest

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47263.json"