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libssh: libssh: denial of service via oversized SFTP read length

🗓️ 21 Jul 2026 16:32:37Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 7 Views

A remote authenticated client can cause denial of service in libssh by oversized SSH_FXP_READ lengths exhausting memory on the SFTP server.

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CVE-2026-59844 Libssh: libssh: denial of service via oversized sftp read length
21 Jul 202611:32
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21 Jul 202611:32
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Fedora 43 : libssh (2026-063caa9112)
23 Jul 202600:00
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Fedora 44 : libssh (2026-0e46c91ccf)
23 Jul 202600:00
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Slackware Linux 15.0 / current libssh Multiple Vulnerabilities (SSA:2026-202-01)
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21 Jul 202612:18
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64libssh0.12.1-4.hum1libssh-0.12.1-4.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64libssh0.12.1-4.hum1libssh-0.12.1-4.hum1.x86_64.rpm
Red Hat Hardened Imagesanynoarchlibssh-config0.12.1-4.hum1libssh-config-0.12.1-4.hum1.noarch.rpm

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24 Jul 2026 13:27Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.16.5
EPSS0.00536
SSVC
7