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CVE Vulnerability Details :

CVE-2026-27152

PUBLISHED

More Info Official Page

Assigner-GitHub_M

Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa

Published At-26 Feb, 2026 | 20:00

Updated At-26 Feb, 2026 | 20:00

▼CVE Numbering Authority (CNA)

DIscourse has DM communication-preference bypass when adding members

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, DM communication-preference bypass when adding members via `Chat::AddUsersToChannel` — a user could add targets who have blocked/ignored/muted them to an existing DM channel, bypassing per-recipient PM restrictions that are enforced during DM channel creation. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

Affected Products

Vendor

Civilized Discourse Construction Kit, Inc.

Product

discourse

Versions

Affected

< 2025.12.2
>= 2026.1.0-latest, < 2026.1.1
>= 2026.2.0-latest, < 2026.2.0

Problem Types

Type	CWE ID	Description
CWE	CWE-284	CWE-284: Improper Access Control

Type: CWE

CWE ID: CWE-284

Description: CWE-284: Improper Access Control

Metrics

Version	Base score	Base severity	Vector
4.0	1.3	LOW	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U

Version: 4.0

Base score: 1.3

Base severity: LOW

Vector:

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U

References

Hyperlink	Resource
https://github.com/discourse/discourse/security/advisories/GHSA-f8ff-pxg3-7967	x_refsource_CONFIRM

Hyperlink: https://github.com/discourse/discourse/security/advisories/GHSA-f8ff-pxg3-7967

Resource:

x_refsource_CONFIRM

Affected Products

Affected

Problem Types

Metrics

Metrics Other Info

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References