CVE-2026-107269: medium-severity vulnerability in gophish
Gophish through 0.12.1 Username Enumeration via POST /login Timing Discrepancy
Published
30Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 6.3
exploitation probability
—
observed exploitation
nono source reports it
1 public exploit(s)
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/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
gophish · gophishpublic PoCs found — 1
cve_referenceblog.ostorlab.co/gophish-0121-manual-review-agentic-deep-scan.htmlunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — gophish
In the same product, most dangerous first.
CVE-2026-39904HIGHGophish 0.12.1 Denial of Service via Office Document UploadEPSS 0.4%CVE-2026-82269HIGHGophish Account Lockout and Forced Password Change Bypassable via API KeyEPSS 0.4%CVE-2026-107273MEDIUMGophish 0.11.0 through 0.12.1 SSRF via POST /api/import/siteEPSS —CVE-2026-107272LOWGophish through 0.12.1 XSS via Unescaped SMTP Server Error MessagesEPSS —CVE-2026-107271MEDIUMGophish through 0.12.1 Login Rate Limit Bypass via X-Forwarded-For SpoofingEPSS —CVE-2026-107270HIGHGophish through 0.12.1 Object Takeover via Client-Supplied ID on API Create EndpointsEPSS —
References
https://blog.ostorlab.co/gophish-0121-manual-review-agentic-deep-scan.htmlhttps://github.com/gophish/gophishhttps://github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/controllers/route.go#L375-L390https://www.vulncheck.com/advisories/gophish-through-0.12.1-username-enumeration-via-post-login-timing-discrepancy