What’s Vulnerable › Vulnerabilities

CVE-2026-47159: Vaultwarden: Authentication Flow Information Disclosure in SSO Discovery Allows Organization Enumeration and Pre-Validation Token Exposure

• Severity: medium (CVSS 6.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-15 · updated 2026-10-24
• Weakness: CWE-287

Description

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO discovery and pre-validation flow returned organization-related SSO metadata including organizationIdentifier values for arbitrary email addresses and allowed a valid pre-validation JWT to be obtained with only the discovered identifier, enabling SSO-enabled organization enumeration and authentication workflow abuse. This issue is fixed in version 1.36.0.

Affected products

• dani-garcia vaultwarden: before 1.36.0

References

• https://github.com/dani-garcia/vaultwarden/commit/d297e274a35dccd0f5d935e9d5934e0f7e9c0a87
• https://github.com/dani-garcia/vaultwarden/pull/7163
• https://github.com/dani-garcia/vaultwarden/releases/tag/1.36.0
• https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-hxqh-ff5p-wfr3
• https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-hxqh-ff5p-wfr3

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