CVE-2026-57521

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-06-25. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
4.3
EG Score
4.3(high)
EPSS
16.0%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 27, 2026

Advisory Details (5)

Auto-updated Jun 26, 2026
Patch available. Sources: github_pr, github_release, github_commit.
generic

Bitwarden Server < 2026.5.0 Broken Access Control via PreviewInvoiceController | Advisories | VulnCheck

https://www.vulncheck.com/advisories/bitwarden-server-broken-access-control-via-previewinvoicecontroller
generic

Sanjok Karki | Offensive Security Engineer

https://sanjokkarki.com.np/blog/bitwarden-preview-invoice-idor
github_release Patch Available

Version 2026.5.0

Patch available: bitwarden/server v2026.5.0

https://github.com/bitwarden/server/releases/tag/v2026.5.0
github_pr Patch Available

[PM-34848] Add authorization to PreviewInvoiceController org endpoints

Patch available: bitwarden/server v2026.5.0 (PR #7583 merged 2026-05-05)

https://github.com/bitwarden/server/pull/7583
github_commit Patch Available

commit 0a3d9f9deb7d (bitwarden/server)

Patch available: bitwarden/server v2026.5.0 (contains commit 0a3d9f9deb7d)

https://github.com/bitwarden/server/commit/0a3d9f9deb7d407503207b0d0ca8f0165a890bee

Vendor Advisories for CVE-2026-57521(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 26× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 22:17 UTCEG score recompute
  2. 2026-07-06 22:17 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-06 00:07 UTCEG score recompute
  8. 2026-07-06 00:07 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-05 02:06 UTCEG score recompute
  12. 2026-07-05 02:05 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-04 04:07 UTCEG score recompute
  16. 2026-07-04 04:06 UTCGHSA enrichment
  17. 2026-07-03 05:39 UTCEG score recompute
  18. 2026-07-03 05:38 UTCGHSA enrichment
  19. 2026-07-02 07:39 UTCEG score recompute
  20. 2026-07-02 07:39 UTCGHSA enrichment
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-07-01 09:41 UTCEG score recompute
  23. 2026-07-01 09:40 UTCGHSA enrichment
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-30 11:41 UTCEG score recompute
Show 16 more
  1. 2026-06-30 11:41 UTCGHSA enrichment
  2. 2026-06-29 14:06 UTCEPSS rescore
  3. 2026-06-29 13:43 UTCEG score recompute
  4. 2026-06-29 13:43 UTCGHSA enrichment
  5. 2026-06-28 15:44 UTCEG score recompute
  6. 2026-06-28 15:44 UTCGHSA enrichment
  7. 2026-06-28 14:07 UTCEPSS rescore
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-27 17:45 UTCEG score recompute
  10. 2026-06-27 17:45 UTCGHSA enrichment
  11. 2026-06-27 03:08 UTCEPSS rescore
  12. 2026-06-26 19:46 UTCEG score recompute
  13. 2026-06-26 19:45 UTCGHSA enrichment
  14. 2026-06-26 15:40 UTCNVD updateCVSS v4 → 5.3
  15. 2026-06-25 21:46 UTCEG score recompute
  16. 2026-06-25 21:46 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57521?
CVE-2026-57521 is a medium vulnerability published on June 25, 2026. 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…
When was CVE-2026-57521 disclosed?
CVE-2026-57521 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57521 actively exploited?
CVE-2026-57521 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57521?
CVE-2026-57521 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-57521?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57521, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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