Low severity · published Oct 7, 2026
CVE-2026-107269
Gophish through 0.12.1 Username Enumeration via POST /login Timing Discrepancy
3.7
CVSS
0.2%
EPSS
No
On KEV
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.
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 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GO
gophish · gophish
through 0.12.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-107269
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-107269
technical-description
https://blog.ostorlab.co/gophish-0121-manual-review-agentic-deep-scan.html
technical-description
https://github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/controllers/route.go#L375-L390
product
https://github.com/gophish/gophish
third-party-advisory
https://www.vulncheck.com/advisories/gophish-through-0.12.1-username-enumeration-via-post-login-timing-discrepancy
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