CVE-2026-44786

Source
https://cve.org/CVERecord?id=CVE-2026-44786
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44786.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-44786
Aliases
Published
2026-06-12T20:22:06.193Z
Modified
2026-07-08T08:13:29.454082573Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Discourse: Public chat MessageBus broadcasts are not restricted to chat-eligible users
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, chat events for public category channels are published to MessageBus without permission scoping, so any MessageBus subscriber without chat enabled could receive chat message payloads in real time. 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/2026/44xxx/CVE-2026-44786.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-2026-44786.json"