Medium 4.3Published Jun 25, 2026

CVE-2026-57521Bitwarden Server < 2026.5.0 Broken Access Control via PreviewInvoiceController

Updated under an hour ago (Oct 28, 2026, 7:00 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for bitwarden server

Exploited in the last 30 days

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.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

bitwarden server bitwarden:server (from the name)	before 2026.5.0	CNA record
bitwarden server bitwarden:server	before 2026.5.0	NVD

References

References

https://sanjokkarki.com.np/blog/bitwarden-preview-invoice-idor	technical-description, exploit, patch, third-party-advisory
https://github.com/bitwarden/server/releases/tag/v2026.5.0	release-notes
https://github.com/bitwarden/server/pull/7583	issue-tracking
https://github.com/bitwarden/server/commit/0a3d9f9deb7d407503207b0d0ca8f0165a890bee	patch
https://www.vulncheck.com/advisories/bitwarden-server-broken-access-control-via-previewinvoicecontroller	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.