CVE-2026-57522

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Source
https://cve.org/CVERecord?id=CVE-2026-57522
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-57522.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-57522
Published
2026-06-25T19:09:33Z
Modified
2026-11-09T02:47:23Z
Severity
  • 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N CVSS Calculator
Summary
Bitwarden Server < 2026.5.0 JSON Injection via Webhook Templates
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-74"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57522.json"
}
References

Affected packages

Git / github.com/bitwarden/server

Affected ranges

Type
GIT
Repo
https://github.com/bitwarden/server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c3cabffccfe35004f5022f91f95cc0fb5e8aa7c4
Fixed
a26afd18130ef985ede5c97d277820d045185a28
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:bitwarden:server:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "2026.5.0"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "a26afd18130ef985ede5c97d277820d045185a28"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v2026.5.0",
            "range": [
                {
                    "fixed": "c3cabffccfe35004f5022f91f95cc0fb5e8aa7c4"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.22.0
1.4.0
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.1.0
v1.10.0
v1.11.0
v1.11.1
v1.12.0
v1.12.1
v1.13.0
v1.13.1
v1.14.0
v1.14.1
v1.14.2
v1.15.0
v1.15.1
v1.16.0
v1.17.0
v1.17.1
v1.17.2
v1.18.0
v1.19.0
v1.2.0
v1.20.0
v1.21.0
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.30.0
v1.30.1
v1.30.2
v1.30.3
v1.30.4
v1.31.0
v1.31.1
v1.32.0
v1.33.0
v1.33.1
v1.34.0
v1.35.0
v1.35.1
v1.36.0
v1.36.1
v1.37.0
v1.37.1
v1.37.2
v1.38.0
v1.38.1
v1.38.2
v1.39.0
v1.4.1
v1.5.0
v1.5.1
v1.6.0
v1.7.0
v1.8.0
v1.8.1
v1.8.2
v1.9.0
v2024.*
v2024.1.2
v2024.10.1
v2024.2.3
v2024.5.0
v2024.8.0
v2024.8.1
v2025.*
v2025.10.1
v2025.7.1
v2025.8.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-57522.json"