CVE-2026-57521

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM 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
Elevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: Elevated riskExposed: 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(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 14, 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 5× in last 7d / 51× 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.

Showing the most recent 100 of 176 total refreshes for this CVE.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-10 09:35 UTCEPSS rescore
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-07 16:01 UTCEPSS rescore
  5. 2026-09-06 13:47 UTCEPSS rescore
  6. 2026-09-04 05:07 UTCEPSS rescore
  7. 2026-09-02 14:12 UTCEPSS rescore
  8. 2026-09-01 13:54 UTCEPSS rescore
  9. 2026-09-01 04:40 UTCEPSS rescore
  10. 2026-08-30 19:30 UTCEG score recompute
  11. 2026-08-30 19:30 UTCGHSA enrichment
  12. 2026-08-30 19:17 UTCEPSS rescore
  13. 2026-08-30 01:22 UTCEPSS rescore
  14. 2026-08-28 21:42 UTCEPSS rescore
  15. 2026-08-27 23:17 UTCEG score recompute
  16. 2026-08-27 23:17 UTCGHSA enrichment
  17. 2026-08-27 14:25 UTCEPSS rescore
  18. 2026-08-26 14:46 UTCEPSS rescore
  19. 2026-08-25 13:49 UTCEPSS rescore
  20. 2026-08-25 04:45 UTCEG score recompute
  21. 2026-08-25 04:45 UTCGHSA enrichment
  22. 2026-08-24 06:47 UTCGHSA enrichment
  23. 2026-08-23 07:59 UTCEG score recompute
  24. 2026-08-23 07:59 UTCGHSA enrichment
  25. 2026-08-23 00:19 UTCEPSS rescore
Show 75 more
  1. 2026-08-22 10:01 UTCEG score recompute
  2. 2026-08-22 10:00 UTCGHSA enrichment
  3. 2026-08-21 23:49 UTCEPSS rescore
  4. 2026-08-21 05:00 UTCEG score recompute
  5. 2026-08-21 05:00 UTCGHSA enrichment
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-20 07:02 UTCEG score recompute
  8. 2026-08-20 07:02 UTCGHSA enrichment
  9. 2026-08-19 17:04 UTCEPSS rescore
  10. 2026-08-19 01:14 UTCEG score recompute
  11. 2026-08-19 01:14 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-16 21:06 UTCEG score recompute
  15. 2026-08-16 21:06 UTCGHSA enrichment
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 02:14 UTCEPSS rescore
  18. 2026-08-15 23:08 UTCEG score recompute
  19. 2026-08-15 23:08 UTCGHSA enrichment
  20. 2026-08-15 01:30 UTCEPSS rescore
  21. 2026-08-15 01:09 UTCGHSA enrichment
  22. 2026-08-14 03:11 UTCEG score recompute
  23. 2026-08-14 03:11 UTCGHSA enrichment
  24. 2026-08-13 22:00 UTCEPSS rescore
  25. 2026-08-13 05:13 UTCEG score recompute
  26. 2026-08-13 05:12 UTCGHSA enrichment
  27. 2026-08-12 13:51 UTCEPSS rescore
  28. 2026-08-12 07:14 UTCEG score recompute
  29. 2026-08-12 07:14 UTCGHSA enrichment
  30. 2026-08-11 09:16 UTCEG score recompute
  31. 2026-08-11 09:16 UTCGHSA enrichment
  32. 2026-08-11 00:00 UTCEPSS rescore
  33. 2026-08-10 11:18 UTCEG score recompute
  34. 2026-08-10 11:18 UTCGHSA enrichment
  35. 2026-08-09 13:46 UTCEPSS rescore
  36. 2026-08-09 13:19 UTCEG score recompute
  37. 2026-08-09 13:19 UTCGHSA enrichment
  38. 2026-08-08 16:37 UTCEPSS rescore
  39. 2026-08-08 15:21 UTCGHSA enrichment
  40. 2026-08-07 17:22 UTCEG score recompute
  41. 2026-08-07 17:22 UTCGHSA enrichment
  42. 2026-08-06 19:24 UTCEG score recompute
  43. 2026-08-06 19:24 UTCGHSA enrichment
  44. 2026-08-06 13:47 UTCEPSS rescore
  45. 2026-08-05 21:25 UTCEG score recompute
  46. 2026-08-05 21:25 UTCGHSA enrichment
  47. 2026-08-05 19:17 UTCEPSS rescore
  48. 2026-08-04 23:27 UTCEG score recompute
  49. 2026-08-04 23:27 UTCGHSA enrichment
  50. 2026-08-04 15:10 UTCEPSS rescore
  51. 2026-08-04 10:39 UTCEPSS rescore
  52. 2026-08-04 01:29 UTCEG score recompute
  53. 2026-08-04 01:29 UTCGHSA enrichment
  54. 2026-08-03 10:36 UTCEPSS rescore
  55. 2026-08-03 03:31 UTCGHSA enrichment
  56. 2026-08-02 05:32 UTCEG score recompute
  57. 2026-08-02 05:32 UTCGHSA enrichment
  58. 2026-08-02 02:27 UTCEPSS rescore
  59. 2026-08-01 07:34 UTCEG score recompute
  60. 2026-08-01 07:34 UTCGHSA enrichment
  61. 2026-08-01 04:16 UTCEPSS rescore
  62. 2026-07-31 09:10 UTCEG score recompute
  63. 2026-07-31 09:10 UTCGHSA enrichment
  64. 2026-07-30 16:28 UTCEPSS rescore
  65. 2026-07-30 11:11 UTCEG score recompute
  66. 2026-07-30 11:11 UTCGHSA enrichment
  67. 2026-07-30 01:30 UTCEPSS rescore
  68. 2026-07-30 01:30 UTCEPSS rescore
  69. 2026-07-29 13:09 UTCEG score recompute
  70. 2026-07-29 13:09 UTCGHSA enrichment
  71. 2026-07-28 15:37 UTCEPSS rescore
  72. 2026-07-28 15:10 UTCEG score recompute
  73. 2026-07-28 15:10 UTCGHSA enrichment
  74. 2026-07-27 14:14 UTCEPSS rescore
  75. 2026-07-27 13:10 UTCGHSA enrichment

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 July 14, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 63.7% of all scored CVEs.
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.

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