Is CVE-2026-57522 actively exploited?

No active exploitation of CVE-2026-57522 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-57522 be exploited remotely?

Yes. CVE-2026-57522 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-57522?

CVE-2026-57522 has a CVSS score of 5.0 (MEDIUM).

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MEDIUM

CVE-2026-57522

CWE-74Published: June 25, 2026· Updated: Jun 27, 2026

5.0

CVSS v3.1

EPSS:0.22%probability of exploitation in 30 daysPercentile:12.1th

Official 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.

NVD Source

Technical Analysis

CVE-2026-57522 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.