CVE-2026-107269

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 4.0

6.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-25)

CWE

CWE-208

Published

2026-10-07

Modified

2026-10-10

Record from

the NVD, synced 2026-10-19

References

• https://blog.ostorlab.co/gophish-0121-manual-review-agentic-deep-scan.html
• https://github.com/gophish/gophish
• https://github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/controllers/route.go#L375-L390
• https://www.vulncheck.com/advisories/gophish-through-0.12.1-username-enumeration-via-post-login-timing-discrepancy

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