CVE•Published 2026-05-11•Modified 2026-05-18•0 articles on news•5 live references•NVD data

CVE-2026-43911Dani-garcia · Vaultwarden

Vulnerability data via NVD (ingested)

CVSS v3.1

6.8

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS percentile

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Weaknesses (CWE)

CWE-613Insufficient Session Expiration

Description

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.5, refresh tokens are not invalidated when the user's security_stamp is rotated by some security-sensitive operations (password change, KDF change, key rotation, email change, org admin password reset, emergency access takeover). This allows an attacker holding a previously obtained refresh token to maintain session access even after the user has taken action to secure their account. This vulnerability is fixed in 1.35.5.

Timeline

Published 2026-05-11

Modified 2026-05-18

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-43911

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Dani-garcia Vaultwarden"

All exposed Dani-garcia Vaultwarden instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Vaultwarden"

HTTP body or banner mentions "Vaultwarden" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-43911