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libssh: libssh: information disclosure via short GSSAPI Curve25519 public key

🗓️ 17 Aug 2026 21:37:47Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 19 Views

libssh GSSAPI key exchange copies short Curve25519 key without validation, causing heap read and memory disclosure.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2aarch64libssh0.12.0-3.el10_2libssh-0.12.0-3.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lelibssh0.12.0-3.el10_2libssh-0.12.0-3.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xlibssh0.12.0-3.el10_2libssh-0.12.0-3.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64libssh0.12.0-3.el10_2libssh-0.12.0-3.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2noarchlibssh-config0.12.0-3.el10_2libssh-config-0.12.0-3.el10_2.noarch.rpm
Red Hat Enterprise Linux10.2aarch64libssh-debuginfo0.12.0-3.el10_2libssh-debuginfo-0.12.0-3.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lelibssh-debuginfo0.12.0-3.el10_2libssh-debuginfo-0.12.0-3.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xlibssh-debuginfo0.12.0-3.el10_2libssh-debuginfo-0.12.0-3.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64libssh-debuginfo0.12.0-3.el10_2libssh-debuginfo-0.12.0-3.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64libssh-debugsource0.12.0-3.el10_2libssh-debugsource-0.12.0-3.el10_2.aarch64.rpm
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01 Sep 2026 20:01Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.13.7 - 5.3
EPSS0.00408
SSVC
19