CVE-2026-57520

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.1Exploit: 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 privilege escalation vulnerability that allows authenticated Custom users with ManageUsers permission to remove Admin accounts from an organization by exploiting a missing role hierarchy check in the bulk user-remove endpoint. Attackers can supply Admin organization-user IDs in a bulk DELETE request to bypass the guard enforced on the single-user removal path, effectively removing one or more Admin accounts from an organization.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity71% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
49%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 14, 2026

Advisory Details (5)

Auto-updated Jun 27, 2026
Patch available. Sources: github_release, github_commit, github_pr.
generic

Bitwarden Server < 2026.5.0 Privilege Escalation via Bulk User Remove Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/bitwarden-server-privilege-escalation-via-bulk-user-remove-endpoint
generic

Sanjok Karki | Offensive Security Engineer

https://sanjokkarki.com.np/blog/bitwarden-bulk-remove-admin
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-35250] Prevent Custom Users Removing Admins

Patch available: bitwarden/server v2026.5.0 (PR #7526 merged 2026-04-23)

https://github.com/bitwarden/server/pull/7526
github_commit Patch Available

commit 901bb67157c0 (bitwarden/server)

Patch available: bitwarden/server v2026.5.0 (contains commit 901bb67157c0)

https://github.com/bitwarden/server/commit/901bb67157c0f80d369c40b76742fdf7623da4e4

Vendor Advisories for CVE-2026-57520(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 / 62× 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 227 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 00:18 UTCEG score recompute
  21. 2026-08-25 00:18 UTCGHSA enrichment
  22. 2026-08-24 13:08 UTCEG score recompute
  23. 2026-08-24 13:08 UTCGHSA enrichment
  24. 2026-08-23 20:46 UTCGHSA enrichment
  25. 2026-08-23 09:36 UTCEG score recompute
Show 75 more
  1. 2026-08-23 09:36 UTCGHSA enrichment
  2. 2026-08-23 00:19 UTCEPSS rescore
  3. 2026-08-22 22:22 UTCGHSA enrichment
  4. 2026-08-22 09:59 UTCEG score recompute
  5. 2026-08-22 09:59 UTCGHSA enrichment
  6. 2026-08-21 23:49 UTCEPSS rescore
  7. 2026-08-21 17:25 UTCGHSA enrichment
  8. 2026-08-21 05:23 UTCEG score recompute
  9. 2026-08-21 05:23 UTCGHSA enrichment
  10. 2026-08-20 22:55 UTCEPSS rescore
  11. 2026-08-20 18:14 UTCGHSA enrichment
  12. 2026-08-20 07:02 UTCEG score recompute
  13. 2026-08-20 07:02 UTCGHSA enrichment
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 12:39 UTCGHSA enrichment
  16. 2026-08-19 01:14 UTCEG score recompute
  17. 2026-08-19 01:14 UTCGHSA enrichment
  18. 2026-08-18 13:48 UTCEPSS rescore
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 11:51 UTCGHSA enrichment
  21. 2026-08-17 00:43 UTCEG score recompute
  22. 2026-08-17 00:43 UTCGHSA enrichment
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 13:34 UTCGHSA enrichment
  25. 2026-08-16 02:23 UTCEG score recompute
  26. 2026-08-16 02:23 UTCGHSA enrichment
  27. 2026-08-16 02:14 UTCEPSS rescore
  28. 2026-08-15 15:14 UTCGHSA enrichment
  29. 2026-08-15 04:05 UTCEG score recompute
  30. 2026-08-15 04:05 UTCGHSA enrichment
  31. 2026-08-15 01:30 UTCEPSS rescore
  32. 2026-08-14 16:56 UTCGHSA enrichment
  33. 2026-08-14 05:37 UTCEG score recompute
  34. 2026-08-14 05:37 UTCGHSA enrichment
  35. 2026-08-13 22:00 UTCEPSS rescore
  36. 2026-08-13 18:28 UTCGHSA enrichment
  37. 2026-08-13 06:04 UTCGHSA enrichment
  38. 2026-08-12 18:54 UTCEG score recompute
  39. 2026-08-12 18:54 UTCGHSA enrichment
  40. 2026-08-12 13:51 UTCEPSS rescore
  41. 2026-08-12 07:45 UTCGHSA enrichment
  42. 2026-08-11 20:36 UTCEG score recompute
  43. 2026-08-11 20:36 UTCGHSA enrichment
  44. 2026-08-11 09:27 UTCEG score recompute
  45. 2026-08-11 09:27 UTCGHSA enrichment
  46. 2026-08-11 00:00 UTCEPSS rescore
  47. 2026-08-10 22:17 UTCGHSA enrichment
  48. 2026-08-10 11:08 UTCGHSA enrichment
  49. 2026-08-09 23:58 UTCEG score recompute
  50. 2026-08-09 23:58 UTCGHSA enrichment
  51. 2026-08-09 13:46 UTCEPSS rescore
  52. 2026-08-09 12:49 UTCGHSA enrichment
  53. 2026-08-09 01:40 UTCEG score recompute
  54. 2026-08-09 01:40 UTCGHSA enrichment
  55. 2026-08-08 16:37 UTCEPSS rescore
  56. 2026-08-08 14:31 UTCGHSA enrichment
  57. 2026-08-08 03:21 UTCEG score recompute
  58. 2026-08-08 03:21 UTCGHSA enrichment
  59. 2026-08-07 16:12 UTCGHSA enrichment
  60. 2026-08-07 05:03 UTCGHSA enrichment
  61. 2026-08-06 17:54 UTCEG score recompute
  62. 2026-08-06 17:54 UTCGHSA enrichment
  63. 2026-08-06 13:47 UTCEPSS rescore
  64. 2026-08-06 06:44 UTCGHSA enrichment
  65. 2026-08-05 19:35 UTCEG score recompute
  66. 2026-08-05 19:35 UTCGHSA enrichment
  67. 2026-08-05 19:17 UTCEPSS rescore
  68. 2026-08-05 08:23 UTCGHSA enrichment
  69. 2026-08-04 20:06 UTCEG score recompute
  70. 2026-08-04 20:06 UTCGHSA enrichment
  71. 2026-08-04 15:10 UTCEPSS rescore
  72. 2026-08-04 10:39 UTCEPSS rescore
  73. 2026-08-04 08:55 UTCGHSA enrichment
  74. 2026-08-03 18:59 UTCEG score recompute
  75. 2026-08-03 18:59 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-57520?
CVE-2026-57520 is a high vulnerability published on June 25, 2026. Bitwarden Server before 2026.5.0 contains a privilege escalation vulnerability that allows authenticated Custom users with ManageUsers permission to remove Admin accounts from an organization by exploiting a missing role hierarchy check in the bulk user-remove endpoint. Attackers can supply Admin…
When was CVE-2026-57520 disclosed?
CVE-2026-57520 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-2026-57520 actively exploited?
CVE-2026-57520 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 51.4% of all scored CVEs.
What is the CVSS score of CVE-2026-57520?
CVE-2026-57520 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-57520?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57520, 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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