Improper input validation in Bugsink
CVE-2026-40162
Bugsink is a self-hosted error tracking tool. In 2.1.0, an authenticated file write vulnerability was identified in Bugsink 2.1.0 in the artifact bundle assembly flow. A user with a valid authentication token could cause the application to write attacker-controlled content to a filesystem location writable by the Bugsink process. This vulnerability is fixed in 2.1.1.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.003 (22.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
Affected products
- Bugsink — versions >= 2.1.0, < 2.1.1, 2.1.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-40162?
- CVE-2026-40162 is a high-severity vulnerability in Bugsink, classified under Improper Input Validation. CVSS score: 7.1/10. Published 2026-04-10.
- How severe is CVE-2026-40162?
- High severity. CVSS v3 base score is 7.1 out of 10.