CVE-2026-30891 — MEDIUM (6.5)

Q: How severe is CVE-2026-30891?

CVE-2026-30891 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-30891?

Check the references section above for vendor advisories and patch information. Affected products include: Discourse Discourse.

Vulnerability Description

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, a user could access another user's private activity due to insufficient authorization checks in the user actions endpoint. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Discourse	Discourse	>= 2026.1.0, < 2026.1.2

Related Weaknesses (CWE)

CWE-200

References

https://github.com/discourse/discourse/security/advisories/GHSA-ww5f-24g5-c33gVendor Advisory

FAQ

What is CVE-2026-30891?

CVE-2026-30891 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, a user could access another user's private activity due to insufficient authorization chec...

How severe is CVE-2026-30891?

CVE-2026-30891 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-30891?

Check the references section above for vendor advisories and patch information. Affected products include: Discourse Discourse.