Bug 2426410 (CVE-2025-15224) - CVE-2025-15224 curl: libssh key passphrase bypass without agent set
Summary: CVE-2025-15224 curl: libssh key passphrase bypass without agent set
Keywords:
Status: NEW
Alias: CVE-2025-15224
Deadline: 2026-01-07
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-31 04:09 UTC by OSIDB Bzimport
Modified: 2026-06-02 08:28 UTC (History)
24 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2025-12-31 04:09:25 UTC 
This flaw only exists when libcurl is built to use the libssh backend, not the
libssh2 based one. This problem happened because libssh has a somewhat
surprising API choice where they fall back to agent authentication.

It should be noted that the authentication still only succeeds if the local
SSH agent actually has the correct passphrase.
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