[UPDATE] [high] Vaultwarden: Multiple vulnerabilities allow gaining user rights

highCVE-2026-47158 CVE-2026-47159 CVE-2026-47160 CVE-2026-47164

A remote, anonymous attacker can exploit multiple vulnerabilities in Vaultwarden to gain user rights and disclose information.

CSIRTS triage

vendor: Vaultwarden product: Vaultwarden Privilege escalation Information disclosure

What: Multiple vulnerabilities allow a remote, anonymous attacker to gain user rights and disclose information.
Who is affected: Remote, anonymous users of Vaultwarden are affected.
Urgency: Remediation is urgent due to the high severity of the vulnerabilities.
Action: Patch Vaultwarden to the latest version to address these issues.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-07-16
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1600

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-471580.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.
Low exploitation riskCVE-2026-471590.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all scored CVEs.
Low exploitation riskCVE-2026-471600.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all scored CVEs.
Low exploitation riskCVE-2026-471640.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-47158	coverage & exploitation status	NVD · CVE.org
CVE-2026-47159	coverage & exploitation status	NVD · CVE.org
CVE-2026-47160	coverage & exploitation status	NVD · CVE.org
CVE-2026-47164	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Vaultwarden

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[NEW] [medium] Vaultwarden: Multiple vulnerabilitiescert-bund · 2026-07-27
highCVE-2026-47164: Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's S…nvd · 2026-07-15
mediumCVE-2026-47160: Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's /…nvd · 2026-07-15
unknownCVE-2026-47159: Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's S…nvd · 2026-07-15
highCVE-2026-47158: Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's S…nvd · 2026-07-15