Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-47164— Vaultwarden: SSO Email Auto-Link Can Bind an Existing Local Account to an Attacker-Controlled IdP Identity

Quick assessment

Affected
dani-garcia vaultwarden
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

dani-garcia vaultwarden是dani-garcia个人开发者开源的一个密码管理服务。 dani-garcia vaultwarden 1.36.0之前版本存在权限许可和访问控制问题漏洞，该漏洞源于SSO登录流程仅对新用户创建时检查IdP email_verified声明，而未在SSO_SIGNUPS_MATCH_EMAIL=true时将IdP身份链接到现有本地账户时进行检查，导致攻击者控制的IdP身份可以断言受害者电子邮件地址并绑定到该账户进行身份验证。

CVSS 7.7 · High EPSS 0.27% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
dani-garcia vaultwarden < 1.36.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-47164

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Vaultwarden: SSO Email Auto-Link Can Bind an Existing Local Account to an Attacker-Controlled IdP Identity
Source: CVE Program / CVE List V5
Vulnerability Description
Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO login flow checked the IdP email_verified claim only for new-user creation and not when SSO_SIGNUPS_MATCH_EMAIL=true linked an IdP identity to an existing local account, allowing an attacker-controlled IdP identity asserting a victim email address to bind to and authenticate as that account. This issue is fixed in version 1.36.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
dani-garcia vaultwarden 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
dani-garcia vaultwarden是dani-garcia个人开发者开源的一个密码管理服务。 dani-garcia vaultwarden 1.36.0之前版本存在权限许可和访问控制问题漏洞，该漏洞源于SSO登录流程仅对新用户创建时检查IdP email_verified声明，而未在SSO_SIGNUPS_MATCH_EMAIL=true时将IdP身份链接到现有本地账户时进行检查，导致攻击者控制的IdP身份可以断言受害者电子邮件地址并绑定到该账户进行身份验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
dani-garcia vaultwarden < 1.36.0 -

II. Public POCs for CVE-2026-47164

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7336 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-47164

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-47164 (2)

Vendor Advisories for CVE-2026-47164 (1)

Vendor Pages for CVE-2026-47164 (1)

Same Patch Batch · dani-garcia · 2026-07-15 · 4 CVEs total

CVE-2026-47158 8.3 HIGH Vaultwarden: CSRF in SSO Authorization Flow
CVE-2026-47160 5.8 MEDIUM Vaultwarden: Server-side request forgery (SSRF) via Icon Endpoint Decimal/Hex/Octal IP Byp
CVE-2026-47159 Vaultwarden: Authentication Flow Information Disclosure in SSO Discovery Allows Organizati

IV. Related Vulnerabilities

Same product: vaultwarden
Same vendor: dani-garcia
Same weakness: CWE-284

V. Comments for CVE-2026-47164

No comments yet

Leave a comment