CVE-2026-59845 (GCVE-0-2026-59845)
Vulnerability from cvelistv5
Published
2026-07-21 11:26
Modified
2026-09-01 20:01
Severity ?
5.3 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H
CWE
  • CWE-390 - Detection of Error Condition Without Action
Summary
A flaw was found in libssh. When ProxyCommand is used, an unchecked fork() failure can be stored as process ID -1; during cleanup, signals may then be sent across the caller's accessible process tree, leading to local denial of service.
References
https://access.redhat.com/errata/RHSA-2026:42922 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55855 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:62217 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:62218 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-59845 vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2498178 issue-tracking, x_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:0.12.0-3.el10_2   < *
    cpe:/o:redhat:enterprise_linux:10.2
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:0.9.6-17.el8_10   < *
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/o:redhat:enterprise_linux:8::baseos
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:0.9.6-17.el8_10   < *
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/o:redhat:enterprise_linux:8::baseos
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:0.10.4-19.el9_8   < *
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:0.10.4-19.el9_8   < *
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
 Create a notification for this product.
   Red Hat Red Hat Hardened Images Unaffected: 0.12.1-4.hum1   < *
    cpe:/a:redhat:hummingbird:1
 Create a notification for this product.
Show details on NVD website

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