Vulnerability in Coder
CVE-2026-111933
Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a user enumeration vulnerability because userpassword.Compare() substitutes a placeholder hash derived from the string "hunter2" when a stored password hash is empty. Unauthenticated attackers can submit logins with the password "hunter2" and distinguish HTTP 403 from 401 responses to enumerate valid accounts and reveal the authentication provider of SSO-only users.
Published .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/coder/coder/security/advisories/GHSA-8fxq-53rx-ph5f (vendor-advisory)
- www.vulncheck.com/advisories/coder-before-2.34.2-user-enumeration-via-login-pla… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111933?
- CVE-2026-111933 is a low-severity vulnerability in Coder, classified under Observable Discrepancy. CVSS score: 3.7/10. Published 2026-10-17.
- How severe is CVE-2026-111933?
- Low severity. CVSS v3 base score is 3.7 out of 10.