RLSA-2026:62218

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Source
https://errata.rockylinux.org/RLSA-2026:62218
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:62218.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:62218
Upstream
  • CVE-2026-59843
  • CVE-2026-59844
  • CVE-2026-59845
  • CVE-2026-59846
  • CVE-2026-59848
  • CVE-2026-59850
Published
2026-09-02T06:01:10.749163Z
Modified
2026-09-02T06:30:02.250362949Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Moderate: libssh security update
Details

libssh is a library which implements the SSH protocol. It can be used to implement client and server applications.

Security Fix(es):

  • libssh: libssh: denial of service via zero advertised channel packet size (CVE-2026-59843)

  • libssh: libssh: denial of service via oversized SFTP read length (CVE-2026-59844)

  • libssh: libssh: denial of service via unchecked ProxyCommand fork() failure (CVE-2026-59845)

  • libssh: libssh: information disclosure via ProxyCommand %r username expansion (CVE-2026-59846)

  • libssh: libssh: integrity downgrade via OpenSSL AES-GCM tag verification (CVE-2026-59847)

  • libssh: libssh: denial of service via SFTP responses with unknown request IDs (CVE-2026-59848)

  • libssh: libssh: use-after-free via data callbacks on closed channels (CVE-2026-59850)

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.

Database specific 
{
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "license": "CC-BY-4.0",
    "source_advisory": "RHSA-2026:62218"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:8 / libssh

Package

Name
libssh
Purl
pkg:rpm/rocky-linux/libssh?distro=rocky-linux-8&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:0.9.6-17.el8_10
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:62218.json"