Bitwarden: Security Vulnerabilities
Bitwarden Server prior to v2026.4.1 does not require master-password re-authentication when retrieving or rotating an organization's SCIM API key, allowing an authenticated user with SCIM management privileges to obtain the key using only a valid session.
CVSS Score
8.6
EPSS Score
0.005
Published
2026-05-11
Bitwarden Server prior to v2026.4.1 contains a missing authorization vulnerability that allows any authenticated user to write ciphers into an arbitrary organization via `POST /ciphers/import-organization` by submitting an empty `collections` array, which causes the server-side permission check to be skipped.
CVSS Score
5.3
EPSS Score
0.002
Published
2026-05-11
Bitwarden Server prior to v2026.4.0 contains a missing authorization vulnerability that allows a provider service user to add an arbitrary organization to their provider via `POST /providers/{providerId}/clients/existing`, resulting in takeover of the target organization; self-hosted installations are unaffected as this endpoint is restricted to Cloud via SelfHosted(NotSelfHostedOnly = true).
CVSS Score
8.9
EPSS Score
0.006
Published
2026-05-11
Bitwarden CLI 2026.4.0 from 2026-04-22T21:57Z to 2026-04-22T23:30Z, when obtained from npm, had embedded malicious code. This is related to a Checkmarx supply chain incident.
CVSS Score
8.8
EPSS Score
0.003
Published
2026-05-01
Bitwarden Desktop 2023.7.0 and below allows an attacker with local access to obtain sensitive information via the Bitwarden.exe process.
CVSS Score
5.5
EPSS Score
0.006
Published
2023-08-15
Bitwarden Windows desktop application versions prior to v2023.4.0 store biometric keys in Windows Credential Manager, accessible to other local unprivileged processes.
CVSS Score
7.1
EPSS Score
0.006
Published
2023-06-09
Bitwarden through 2023.2.1 offers password auto-fill within a cross-domain IFRAME element. NOTE: the vendor's position is that there have been important legitimate cross-domain configurations (e.g., an apple.com IFRAME element on the icloud.com website) and that "Auto-fill on page load" is not enabled by default.
CVSS Score
7.5
EPSS Score
0.01
Published
2023-03-09
Bitwarden through 2023.2.1 offers password auto-fill when the second-level domain matches, e.g., a password stored for an example.com hosting provider when customer-website.example.com is visited. NOTE: the vendor's position is that "Auto-fill on page load" is not enabled by default.
CVSS Score
7.5
EPSS Score
0.01
Published
2023-03-09
Bitwarden Server 1.35.1 allows SSRF because it does not consider certain IPv6 addresses (ones beginning with fc, fd, fe, or ff, and the :: address) and certain IPv4 addresses (0.0.0.0/8, 127.0.0.0/8, and 169.254.0.0/16).
CVSS Score
7.5
EPSS Score
0.027
Published
2020-07-21
The Bitwarden server through 1.32.0 has a potentially unwanted KDF.
CVSS Score
7.5
EPSS Score
0.013
Published
2019-12-12
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