Medium severity · published Jul 15, 2026
CVE-2026-47159
Vaultwarden: Authentication Flow Information Disclosure in SSO Discovery Allows Organization Enumeration and Pre-Validation Token Exposure
6.9
CVSS
0.5%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VA
vaultwarden · dani-garcia
< 1.36.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47159
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47159
github.com
https://github.com/dani-garcia/vaultwarden/commit/d297e274a35dccd0f5d935e9d5934e0f7e9c0a87
github.com
https://github.com/dani-garcia/vaultwarden/pull/7163
github.com
https://github.com/dani-garcia/vaultwarden/releases/tag/1.36.0
github.com
https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-hxqh-ff5p-wfr3
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