Vulnerability in Gophish
CVE-2026-107271
Gophish through 0.12.1 contains a rate limit bypass vulnerability that allows unauthenticated attackers to evade /login throttling by spoofing X-Forwarded-For or X-Real-IP headers. Attackers can send a different forwarded address per request so the limiter keyed on rewritten RemoteAddr never triggers, enabling unlimited password guessing and credential stuffing.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- blog.ostorlab.co/gophish-0121-manual-review-agentic-deep-scan.html (technical-description, exploit)
- github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/contro… (technical-description)
- github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/middle… (technical-description)
- github.com/gophish/gophish (product)
- www.vulncheck.com/advisories/gophish-through-0.12.1-login-rate-limit-bypass-via… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-107271?
- CVE-2026-107271 is a medium-severity vulnerability in Gophish, classified under CWE-348. CVSS score: 5.3/10. Published 2026-10-07.
- How severe is CVE-2026-107271?
- Medium severity. CVSS v3 base score is 5.3 out of 10.