bitwarden server 1.35.1/2026.4.0/2026.4.1 PreviewInvoiceController Endpoint authorization

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.61

Summaryinfo

A vulnerability classified as problematic was found in bitwarden server. Affected by this vulnerability is an unknown functionality of the component PreviewInvoiceController Endpoint. Such manipulation leads to authorization. This vulnerability is documented as CVE-2026-57521. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in bitwarden server. It has been rated as problematic. Affected by this issue is an unknown function of the component PreviewInvoiceController Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality. CVE summarizes:

Bitwarden Server before 2026.5.0 contains a broken access control vulnerability that allows any authenticated user to access arbitrary organization billing data by supplying an arbitrary organizationId to the PreviewInvoiceController endpoints without membership or authorization checks. Attackers can exploit the missing ManageOrganizationBillingRequirement on the preview invoice endpoints to retrieve Stripe-computed tax totals, subscription status, and billing details derived from any target organization's real customer and subscription data.

The weakness was released by Sanjok Karki. The advisory is available at sanjokkarki.com.np. This vulnerability is handled as CVE-2026-57521 since 06/24/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available.

Upgrading to version 2026.5.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 0a3d9f9deb7d407503207b0d0ca8f0165a890bee is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: server 2026.5.0
Patch: 0a3d9f9deb7d407503207b0d0ca8f0165a890bee

Timelineinfo

06/24/2026 CVE reserved
06/25/2026 +1 days VulDB entry created
06/26/2026 +0 days Advisory disclosed
06/26/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: sanjokkarki.com.np
Researcher: Sanjok Karki
Status: Confirmed

CVE: CVE-2026-57521 (🔒)
GCVE (CVE): GCVE-0-2026-57521
GCVE (VulDB): GCVE-100-374066

Entryinfo

Created: 06/26/2026 01:24
Changes: 06/26/2026 01:24 (79)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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