What is CVE-2026-29179?

CVE-2026-29179 is a low-severity vulnerability in Octobercms October, classified under Incorrect Authorization. CVSS score: 3.3/10. Published 2026-04-21.

How severe is CVE-2026-29179?

Low severity. CVSS v3 base score is 3.3 out of 10.

Auth bypass in Octobercms October

CVE-2026-29179

October is a Content Management System (CMS) and web platform. Prior to 3.7.16 and 4.1.16, fine-grained sub-permission checks for asset and blueprint file operations were not enforced in the CMS and Tailor editor extensions. This only affe…

Vulnerability class: Broken Access Control

EPSS: 0.000 (10.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N.

Affected products

Octobercms October — versions >= 4.0.0, < 4.1.16, < 3.7.16

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

https://github.com/octobercms/october/security/advisories/GHSA-jvwg-phxx-j3rp (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-29179?: CVE-2026-29179 is a low-severity vulnerability in Octobercms October, classified under Incorrect Authorization. CVSS score: 3.3/10. Published 2026-04-21.
How severe is CVE-2026-29179?: Low severity. CVSS v3 base score is 3.3 out of 10.