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CVE-2026-107269— Gophish through 0.12.1 Username Enumeration via POST /login Timing Discrepancy

Quick assessment

Affected
gophish gophish
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gophish 在 0.12.1 及更早版本中存在一个计时差异漏洞，位于 AdminServer.Login 函数中，该漏洞允许未经身份验证的攻击者通过测量登录响应时间来枚举有效的用户名。攻击者可以向 POST /login 提交候选用户名，并检测到现有账号在 bcrypt 比较过程中产生的延迟，从而缩小密码猜测或凭据填充攻击的目标范围。

CVSS 3.7 · Low
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I. Basic Information for CVE-2026-107269

Vulnerability Information
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Vulnerability Title
Gophish through 0.12.1 Username Enumeration via POST /login Timing Discrepancy
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过时间差异性导致的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
gophish gophish 0 ~ 0.12.1 -

II. Public POCs for CVE-2026-107269

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III. Intelligence Information for CVE-2026-107269

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Proof of Concept for CVE-2026-107269 (1)

Other References for CVE-2026-107269 (3)

Same Patch Batch · gophish · 2026-10-07 · 5 CVEs total

CVE-2026-107270 7.1 HIGH Gophish through 0.12.1 Object Takeover via Client-Supplied ID on API Create Endpoints
CVE-2026-107271 5.3 MEDIUM Gophish through 0.12.1 Login Rate Limit Bypass via X-Forwarded-For Spoofing
CVE-2026-107272 4.7 MEDIUM Gophish through 0.12.1 XSS via Unescaped SMTP Server Error Messages
CVE-2026-107273 4.3 MEDIUM Gophish 0.11.0 through 0.12.1 SSRF via POST /api/import/site

IV. Related Vulnerabilities

Same product: gophish
Same vendor: gophish
Same weakness: CWE-208

V. Comments for CVE-2026-107269

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