Known Vulnerabilities for Libssh2 by The Libssh2 Project
Listed below are 10 of the newest known vulnerabilities associated with "Libssh2" by "The Libssh2 Project".
These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.
Data on known vulnerable versions is also displayed based on information from known CPEs
Known Vulnerabilities
| CVE | Shortened Description | Severity | Publish Date | Last Modified |
|---|---|---|---|---|
| CVE-2026-87865 json | When libcurl uses libssh2 with a hashed `known_hosts` file, an unrelated initial entry can cause host key validation to repor... | Not Provided | 2026-10-20 | 2026-10-30 |
| CVE-2026-66034 json | libssh2 through 1.11.1, fixed in commit a13bb6c, contains a missing bounds check vulnerability that allows a malicious SSH se... | Not Provided | 2026-07-24 | 2026-11-10 |
| CVE-2026-66032 json | libssh2 through 1.11.1, fixed in commit 5e47761, contains a double-free vulnerability in the sftp_open() function in src/sftp... | Not Provided | 2026-07-24 | 2026-11-10 |
| CVE-2026-58051 json | libssh2 through 1.11.1 grows its publickey list with SSH2_REALLOC but does not zero-initialize new entries before parsing pop... | Not Provided | 2026-06-28 | 2026-11-10 |
| CVE-2026-55200 json | libssh2 1.11.1, fixed in commit 97acf3d, contains an out-of-bounds write vulnerability in ssh2_transport_read() that fails to... | Not Provided | 2026-06-17 | 2026-10-22 |
| CVE-2026-7598 json | A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth_password of... | Not Provided | 2026-05-01 | 2026-11-10 |
| CVE-2026-5917 json | libgit2 versions before 1.8.7 and 1.9.0 before 1.9.7 built with the libssh2 SSH backend (USE_SSH=libssh2) contain a shell com... | Not Provided | 2026-08-11 | 2026-08-26 |
| CVE-2025-15661 json | libssh2 through 1.11.1, fixed in commit 2dae302, contains an out-of-bounds heap read vulnerability in the sftp_symlink() func... | Not Provided | 2026-06-18 | 2026-11-10 |
| CVE-2023-48795 json | The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote att... | Not Provided | 2023-12-18 | 2026-10-15 |
| CVE-2020-22218 json | An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory. | Not Provided | 2023-08-22 | 2026-10-14 |