PatchSiren cyber security CVE debrief
CVE-2025-57282 ngrok CVE debrief
A command injection vulnerability affects ngrok versions 4.3.3 and 5.0.0-beta.2, as disclosed in CVE-2025-57282. The vulnerability was published on 2026-05-18 and carries a CVSS 3.1 score of 8.8 (HIGH severity). The attack vector is network-based with low attack complexity, requiring low privileges but no user interaction. Successful exploitation could result in high impact to confidentiality, integrity, and availability. The weakness is classified as CWE-77 (Improper Neutralization of Special Elements used in a Command). The vendor attribution is currently uncertain, with npmjs identified as a reference domain candidate but marked for review due to low confidence. No known exploitation in ransomware campaigns has been reported, and the vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog.
- Vendor
- ngrok
- Product
- ngrok
- CVSS
- HIGH 8.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-18
- Original CVE updated
- 2026-05-18
- Advisory published
- 2026-05-18
- Advisory updated
- 2026-05-18
Who should care
Organizations using ngrok for secure tunneling, particularly those deploying ngrok via npm packages in production environments or CI/CD pipelines. Security teams managing network egress controls and developers integrating ngrok SDKs into applications.
Technical summary
The vulnerability allows command injection in ngrok versions 4.3.3 and 5.0.0-beta.2. With CVSS 3.1 score 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), attackers with low privileges can potentially execute arbitrary commands without user interaction. The affected component appears to be distributed via npm. Organizations should upgrade when patches become available and implement defense-in-depth controls around ngrok deployments.
Defensive priority
HIGH
Recommended defensive actions
- Upgrade ngrok to a version newer than 5.0.0-beta.2 when available
- Review and restrict ngrok agent configurations to minimize attack surface
- Monitor npm package installations for affected ngrok versions
- Apply principle of least privilege for ngrok service accounts
- Audit command execution paths in applications using ngrok SDKs
Evidence notes
Vulnerability description sourced from official CVE record and NVD entry. CVSS vector confirms network attack vector with low complexity. Vendor attribution marked as low confidence pending review. No KEV entry present.
Official resources
2026-05-18