CVE-2026-57522

MEDIUMNVD 5.05.0—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.0 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 62% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
5.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.0Exploit: 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 JSON injection vulnerability in IntegrationTemplateProcessor.ReplaceTokens(), which substitutes user-controlled values into event-integration templates without JSON encoding. When an organization has configured an event integration whose template references a user-controlled token (such as #ActingUserName# or #UserName#, populated from a member's display name), an authenticated member can set their display name to JSON metacharacters and inject arbitrary key-value pairs into the rendered payloads delivered to webhook, SIEM, Slack, Teams, or Datadog endpoints, making injected fields indistinguishable from legitimate template output.

CVSS v3
5.0
EG Score
5.0(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity50% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 14, 2026

Advisory Details (5)

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

Bitwarden Server < 2026.5.0 JSON Injection via Webhook Templates | Advisories | VulnCheck

https://www.vulncheck.com/advisories/bitwarden-server-json-injection-via-webhook-templates
generic

Sanjok Karki | Offensive Security Engineer

https://sanjokkarki.com.np/blog/bitwarden-webhook-json-injection
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-34680 serialize values to prevent injection

Patch available: bitwarden/server v2026.5.0 (PR #7593 merged 2026-05-12)

https://github.com/bitwarden/server/pull/7593
github_commit Patch Available

commit a26afd18130e (bitwarden/server)

Patch available: bitwarden/server v2026.5.0 (contains commit a26afd18130e)

https://github.com/bitwarden/server/commit/a26afd18130ef985ede5c97d277820d045185a28

Vendor Advisories for CVE-2026-57522(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 13× in last 7d / 74× 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 148 total refreshes for this CVE.

  1. 2026-08-30 19:30 UTCEG score recompute
  2. 2026-08-30 19:30 UTCGHSA enrichment
  3. 2026-08-30 19:17 UTCEPSS rescore
  4. 2026-08-30 01:22 UTCEPSS rescore
  5. 2026-08-28 21:42 UTCEPSS rescore
  6. 2026-08-27 23:17 UTCEG score recompute
  7. 2026-08-27 23:17 UTCGHSA enrichment
  8. 2026-08-27 14:25 UTCEPSS rescore
  9. 2026-08-26 14:46 UTCEPSS rescore
  10. 2026-08-25 13:49 UTCEPSS rescore
  11. 2026-08-25 05:40 UTCEG score recompute
  12. 2026-08-25 05:40 UTCGHSA enrichment
  13. 2026-08-24 07:07 UTCGHSA enrichment
  14. 2026-08-23 08:33 UTCEG score recompute
  15. 2026-08-23 08:33 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-22 10:00 UTCEG score recompute
  18. 2026-08-22 10:00 UTCGHSA enrichment
  19. 2026-08-21 23:49 UTCEPSS rescore
  20. 2026-08-21 05:35 UTCEG score recompute
  21. 2026-08-21 05:35 UTCGHSA enrichment
  22. 2026-08-20 22:55 UTCEPSS rescore
  23. 2026-08-20 07:02 UTCEG score recompute
  24. 2026-08-20 07:02 UTCGHSA enrichment
  25. 2026-08-19 17:04 UTCEPSS rescore
Show 75 more
  1. 2026-08-19 01:14 UTCEG score recompute
  2. 2026-08-19 01:14 UTCGHSA enrichment
  3. 2026-08-18 13:48 UTCEPSS rescore
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-16 23:58 UTCEG score recompute
  6. 2026-08-16 23:58 UTCGHSA enrichment
  7. 2026-08-16 14:56 UTCEPSS rescore
  8. 2026-08-16 02:14 UTCEPSS rescore
  9. 2026-08-16 01:24 UTCGHSA enrichment
  10. 2026-08-15 02:50 UTCEG score recompute
  11. 2026-08-15 02:50 UTCGHSA enrichment
  12. 2026-08-15 01:30 UTCEPSS rescore
  13. 2026-08-14 04:16 UTCEG score recompute
  14. 2026-08-14 04:16 UTCGHSA enrichment
  15. 2026-08-13 22:00 UTCEPSS rescore
  16. 2026-08-13 05:43 UTCEG score recompute
  17. 2026-08-13 05:43 UTCGHSA enrichment
  18. 2026-08-12 13:51 UTCEPSS rescore
  19. 2026-08-12 07:09 UTCEG score recompute
  20. 2026-08-12 07:09 UTCGHSA enrichment
  21. 2026-08-11 08:35 UTCEG score recompute
  22. 2026-08-11 08:35 UTCGHSA enrichment
  23. 2026-08-11 00:00 UTCEPSS rescore
  24. 2026-08-10 10:01 UTCEG score recompute
  25. 2026-08-10 10:01 UTCGHSA enrichment
  26. 2026-08-09 13:46 UTCEPSS rescore
  27. 2026-08-09 11:28 UTCEG score recompute
  28. 2026-08-09 11:28 UTCGHSA enrichment
  29. 2026-08-08 16:37 UTCEPSS rescore
  30. 2026-08-08 12:54 UTCEG score recompute
  31. 2026-08-08 12:54 UTCGHSA enrichment
  32. 2026-08-07 14:20 UTCGHSA enrichment
  33. 2026-08-06 15:47 UTCEG score recompute
  34. 2026-08-06 15:47 UTCGHSA enrichment
  35. 2026-08-06 13:47 UTCEPSS rescore
  36. 2026-08-05 19:17 UTCEPSS rescore
  37. 2026-08-05 17:02 UTCGHSA enrichment
  38. 2026-08-04 17:03 UTCEG score recompute
  39. 2026-08-04 17:03 UTCGHSA enrichment
  40. 2026-08-04 15:10 UTCEPSS rescore
  41. 2026-08-04 10:39 UTCEPSS rescore
  42. 2026-08-03 18:29 UTCEG score recompute
  43. 2026-08-03 18:29 UTCGHSA enrichment
  44. 2026-08-03 10:36 UTCEPSS rescore
  45. 2026-08-02 19:01 UTCEG score recompute
  46. 2026-08-02 19:01 UTCGHSA enrichment
  47. 2026-08-02 02:27 UTCEPSS rescore
  48. 2026-08-01 20:27 UTCEG score recompute
  49. 2026-08-01 20:27 UTCGHSA enrichment
  50. 2026-08-01 04:16 UTCEPSS rescore
  51. 2026-07-31 21:54 UTCGHSA enrichment
  52. 2026-07-30 23:16 UTCEG score recompute
  53. 2026-07-30 23:16 UTCGHSA enrichment
  54. 2026-07-30 16:28 UTCEPSS rescore
  55. 2026-07-30 01:30 UTCEPSS rescore
  56. 2026-07-30 01:30 UTCEPSS rescore
  57. 2026-07-30 00:42 UTCGHSA enrichment
  58. 2026-07-28 21:04 UTCEG score recompute
  59. 2026-07-28 21:04 UTCGHSA enrichment
  60. 2026-07-28 15:37 UTCEPSS rescore
  61. 2026-07-27 17:15 UTCEG score recompute
  62. 2026-07-27 17:15 UTCGHSA enrichment
  63. 2026-07-27 14:14 UTCEPSS rescore
  64. 2026-07-26 14:55 UTCEG score recompute
  65. 2026-07-26 14:55 UTCGHSA enrichment
  66. 2026-07-26 14:54 UTCEPSS rescore
  67. 2026-07-26 14:54 UTCEPSS rescore
  68. 2026-07-25 14:18 UTCEPSS rescore
  69. 2026-07-25 14:18 UTCEPSS rescore
  70. 2026-07-24 14:18 UTCEPSS rescore
  71. 2026-07-24 14:18 UTCEPSS rescore
  72. 2026-07-23 14:18 UTCEPSS rescore
  73. 2026-07-23 14:18 UTCEPSS rescore
  74. 2026-07-23 03:20 UTCEG score recompute▲ 1.50
  75. 2026-07-22 14:08 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-57522?
CVE-2026-57522 is a medium vulnerability published on June 25, 2026. Bitwarden Server before 2026.5.0 contains a JSON injection vulnerability in IntegrationTemplateProcessor.ReplaceTokens(), which substitutes user-controlled values into event-integration templates without JSON encoding. When an organization has configured an event integration whose template…
When was CVE-2026-57522 disclosed?
CVE-2026-57522 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-2026-57522 actively exploited?
CVE-2026-57522 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 62.2% of all scored CVEs.
What is the CVSS score of CVE-2026-57522?
CVE-2026-57522 has a CVSS v3 base score of 5.0 (NVD).
How do I remediate CVE-2026-57522?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57522, 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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