Low severity · published Oct 17, 2026
CVE-2026-111933
Coder before 2.34.2 User Enumeration via Login Placeholder Hash
3.7
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
coder · coder
2.34.0 before 2.34.2; 2.33.0 before 2.33.8; 2.30.0 before 2.32.7; before 2.29.17 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-111933
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111933
github.com
https://github.com/coder/coder/security/advisories/GHSA-8fxq-53rx-ph5f
www.vulncheck.com
https://www.vulncheck.com/advisories/coder-before-2.34.2-user-enumeration-via-login-placeholder-hash
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