Alpine/libssh2: unknown
libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client b
Action: Upgrade libssh2 to 1.11.1-r4 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.11.1-r4 | - |
Fixed versions
| 1.11.1-r4 |
Sources
- osv: ALPINE-CVE-2026-66035#Alpine:v3.23/libssh2
- https://security.alpinelinux.org/vuln/CVE-2026-66035
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