CVE-2026-57521: bitwarden server

Bitwarden Server < 2026.5.0 Broken Access Control via PreviewInvoiceController

CVSS 5.3 MediumEPSS 0.0043 · 37th percentile

Published by the CVE Program (CNA: VulnCheck) at 25 Jun 2026, 19:09 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
bitwarden	server pkg:github/bitwarden/server	affected before 2026.5.0 semver Other versions: affected

Identifiers

CVE-2026-57521

CNA

VulnCheck

Weakness (CWE)

CWE-862

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.3	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
4.3	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0043, the 37th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 25 Jun 2026. New records show when each source confirmed them.

Sources

References from the CNA

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

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.