CVE WatchJul 14, 2026

CVE-2026-57522

Bitwarden Server before 2026.5.0 contains a JSON injection vulnerability in IntegrationTemplateProcessor.ReplaceTokens(), which substitutes

CVSS

3.5

Low

EPSS

0.3%

p18

KEV

—

Exploit Today

0-100

Published: Jun 25, 2026 · Last modified: Jul 14, 2026 · CWE-74

EPSS · 30d

0.2%EPSS · 30 days0.3%

2026-06-302026-07-20

Technical description

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.

Official references

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