What is CVE-2026-44783?

CVE-2026-44783 is a medium-severity vulnerability in Discourse, classified under Improper Access Control. CVSS score: 5.4/10. Published 2026-06-12.

How severe is CVE-2026-44783?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Discourse

CVE-2026-44783

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, a flaw in how replies to whisper posts are handled allows authen…

EPSS: 0.001 (4.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Discourse — versions >= 2026.4.0-latest, < 2026.4.1, 2026.5.0, >= 2026.3.0-latest, < 2026.3.1

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2026-44783?: CVE-2026-44783 is a medium-severity vulnerability in Discourse, classified under Improper Access Control. CVSS score: 5.4/10. Published 2026-06-12.
How severe is CVE-2026-44783?: Medium severity. CVSS v3 base score is 5.4 out of 10.