Security Advisory catalog CVE-2026-91151 Historical advisory recorded 12 Nov 2026 15:16:18 UTC. Read the latest advisory .
cve-program · CVE-2026-91151 Published
A flaw was found in Cockpit. A local authenticated user with control over a target account's home directory can exploit a privileged symlink dereference vulnerability in the `ssh-add-public-key.sh` helper. When this helper runs with elevated privileges, it can be tricked into following attacker-controlled symlinks within the `.ssh` or `authorized_keys` paths. This allows the attacker to arbitrarily change file ownership and modes, potentially leading to local privilege escalation and impacting the integrity, confidentiality, and availability of the system.
Read the publisher's advisory Affected versions, risk and source history
cve-program · CVE-2026-91151 Published cockpit https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "cockpit",
"defaultStatus": "affected",
"versions": [
{
"version": "0:366.1.1-1.el10_3",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.3"
]
} cockpit https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "cockpit",
"defaultStatus": "affected",
"versions": [
{
"version": "0:310.10.2-1.el8_10",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/o:redhat:enterprise_linux:8::baseos"
]
} cockpit https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "cockpit",
"defaultStatus": "affected",
"versions": [
{
"version": "0:366.1.1-1.el9_9",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/o:redhat:enterprise_linux:9::baseos"
]
} cockpit https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "cockpit",
"defaultStatus": "affected",
"versions": [
{
"version": "0:366.1.1-1.el9_9",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/o:redhat:enterprise_linux:9::baseos"
]
} cockpit https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.8 Extended Update Support",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "cockpit",
"defaultStatus": "affected",
"versions": [
{
"version": "0:356.4.1-1.el9_8",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:rhel_eus:9.8::appstream",
"cpe:/o:redhat:rhel_eus:9.8::baseos"
]
} cockpit https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "cockpit",
"defaultStatus": "affected",
"cpes": [
"cpe:/o:redhat:rhel_els:7"
]
} devspaces/udi-base-rhel10 https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Dev Spaces",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "devspaces/udi-base-rhel10",
"defaultStatus": "affected",
"cpes": [
"cpe:/a:redhat:openshift_devspaces:3"
]
} devspaces/udi-base-rhel9 https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Dev Spaces",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "devspaces/udi-base-rhel9",
"defaultStatus": "affected",
"cpes": [
"cpe:/a:redhat:openshift_devspaces:3"
]
} devspaces/udi-rhel9 https://access.redhat.com/downloads/content/package-browser/
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Dev Spaces",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "devspaces/udi-rhel9",
"defaultStatus": "affected",
"cpes": [
"cpe:/a:redhat:openshift_devspaces:3"
]
} Original source record · Cite this exact observation · Complete original publisher JSON