CVE-2026-107269
Gophish through 0.12.1 Username Enumeration via POST /login Timing Discrepancy
- State
- Published
- Severity
- 6.3 Medium
- Published
- Oct 7, 2026
- Updated
- Oct 10, 2026
- Reserved
- Oct 7, 2026
Description
Gophish through 0.12.1 contains a timing discrepancy vulnerability in AdminServer.Login that allows unauthenticated attackers to enumerate valid usernames by measuring login response times. Attackers can submit candidate usernames to POST /login and detect bcrypt comparison delays for existing accounts, narrowing targets for password guessing or credential stuffing.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 3.7 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-208 Observable Timing Discrepancy
Affected Products
| Product | Versions |
|---|---|
gophishgophish |
|
References
- Researcher Disclosuretechnical-descriptionexploit
- https://github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/controllers/route.go#L375-L390technical-description
- https://github.com/gophish/gophishproduct
- VulnCheck Advisory: Gophish through 0.12.1 Username Enumeration via POST /login Timing Discrepancythird-party-advisory
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