RHSA-2026:61752 — Security Advisory
Red Hat Security Advisory: libssh2 security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · September 1, 2026
Updated · September 1, 2026
Topic
An update for libssh2 is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The libssh2 packages provide a library that implements the SSH2 protocol.
Security Fix(es):
-
libssh2: integer overflow via large username or password arguments (CVE-2026-7598)
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libssh2: libssh2: Heap buffer overflow via integer overflow in publickey attribute allocation (CVE-2026-58050)
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libssh2: libssh2: Arbitrary code execution via double-free in SFTP session (CVE-2026-66032)
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libssh2: libssh2: Information disclosure and potential arbitrary code execution via heap out-of-bounds read (CVE-2026-66034)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.