What is CVE-2026-31974?

CVE-2026-31974 is a low-severity vulnerability in Opf Openproject, classified under Server-Side Request Forgery (SSRF). CVSS score: 3.0/10. Published 2026-03-11.

How severe is CVE-2026-31974?

Low severity. CVSS v3 base score is 3.0 out of 10.

SSRF in Opf Openproject

CVE-2026-31974

OpenProject is an open-source, web-based project management software. Prior to 17.2.0, OpenProject SMTP test endpoint (POST /admin/settings/mail_notifications) accepts arbitrary host and port values and exhibits measurable differences in r…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (11.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.0 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N.

Affected products

Opf Openproject — versions < 17.2.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

https://github.com/opf/openproject/security/advisories/GHSA-9wr7-j98g-2jh3 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-31974?: CVE-2026-31974 is a low-severity vulnerability in Opf Openproject, classified under Server-Side Request Forgery (SSRF). CVSS score: 3.0/10. Published 2026-03-11.
How severe is CVE-2026-31974?: Low severity. CVSS v3 base score is 3.0 out of 10.