What’s Vulnerable › Vulnerabilities

CVE-2025-15224: libssh key passphrase bypass without agent set

• Severity: low (CVSS 3.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-08 · updated 2026-10-14
• Weakness: CWE-287

Description

When doing SSH-based transfers using either SCP or SFTP, and asked to do public key authentication, curl would wrongly still ask and authenticate using a locally running SSH agent.

Affected products

• curl: from 7.58.0 before 8.18.0 — fixed in 8.18.0

How to fix

Upgrade to a fixed version: curl 8.18.0. Check the vendor advisory for mitigations.

References

• https://curl.se/docs/CVE-2025-15224.html
• https://curl.se/docs/CVE-2025-15224.json
• https://hackerone.com/reports/3480925
• http://www.openwall.com/lists/oss-security/2026/01/07/7

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