CVE-2026-47159 Information disclosure in vaultwarden

Medium 6.9 Published Updated

Attackers can enumerate SSO-enabled organizations and obtain pre-validation tokens via SSO discovery, exposing sensitive metadata and enabling authentication workflow abuse.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-47159?

CVE-2026-47159 is a medium-severity vulnerability in dani-garcia vaultwarden, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-287

Which versions are affected by CVE-2026-47159?

How do I fix CVE-2026-47159?

No fix has been published for CVE-2026-47159 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-47159 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47159 exists.

Sources

Also known as GHSA-hxqh-ff5p-wfr3.

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