Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2026-54371

Improper Link Resolution Before File Access ('Link Following')

Published: Jun 29, 2026 | Modified: Sep 11, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
6.3 MODERATE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-54371
CWEhttps://cwe.mitre.org/data/definitions/59.html

attr before version 2.6.0 contains a symlink traversal vulnerability in the getfattr and setfattr utilities that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link during directory hierarchy traversal. Attackers who control a pathname component can redirect getfattr and setfattr operations to arbitrary files by substituting a symlink, leading to local privilege escalation when getfattr or setfattr is invoked by a privileged process over an attacker-controlled path.

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

NameVendorStart VersionEnd Version
Red Hat Enterprise Linux 10RedHatattr-0:2.6.0-1.el10_2*
Red Hat Enterprise Linux 8RedHatattr-0:2.6.0-1.el8_10*
Red Hat Enterprise Linux 9RedHatattr-0:2.6.0-1.el9_8*
Red Hat Enterprise Linux 9RedHatattr-0:2.6.0-1.el9_8*
Cert Manager support for Red Hat OpenShift release 1.19RedHatcert-manager/cert-manager-operator-rhel9:1788348522*
Cert Manager support for Red Hat OpenShift release 1.19RedHatcert-manager/jetstack-cert-manager-acmesolver-rhel9:1788348571*
Cert Manager support for Red Hat OpenShift release 1.19RedHatcert-manager/jetstack-cert-manager-rhel9:1788348571*
Cert Manager support for Red Hat OpenShift release 1.20RedHatcert-manager/jetstack-cert-manager-rhel9:1790223279*
Cert Manager support for Red Hat OpenShift release 1.20RedHatcert-manager/cert-manager-istio-csr-rhel9:1790223719*
Cert Manager support for Red Hat OpenShift release 1.20RedHatcert-manager/cert-manager-operator-rhel9:1790272426*
Cert Manager support for Red Hat OpenShift release 1.20RedHatcert-manager/jetstack-cert-manager-acmesolver-rhel9:1790589998*
Cert Manager support for Red Hat OpenShift release 1.20RedHatcert-manager/jetstack-cert-manager-rhel9:1790589912*
Cert Manager support for Red Hat OpenShift release 1.20RedHatcert-manager/cert-manager-istio-csr-rhel9:1790589914*
Cert Manager support for Red Hat OpenShift release 1.20RedHatcert-manager/cert-manager-operator-rhel9:1790589855*
Cert Manager support for Red Hat OpenShift release 1.20RedHatcert-manager/cert-manager-trust-manager-rhel9:1790598593*
Red Hat Discovery 2RedHatdiscovery/discovery-server-rhel9:1788205779*
Red Hat Hardened ImagesRedHatattr-main-2.6.0-9.1.hum1*
Red Hat Update Infrastructure 5RedHatrhui5/cds-kubernetes-rhel9:1788880445*
Red Hat Update Infrastructure 5RedHatrhui5/cds-rhel9:1788880464*
Red Hat Update Infrastructure 5RedHatrhui5/haproxy-rhel9:1788880456*
Red Hat Update Infrastructure 5RedHatrhui5/installer-rhel9:1788765051*
Red Hat Update Infrastructure 5RedHatrhui5/rhua-rhel9:1788880581*
AttrUbuntuesm-infra-legacy/trusty*
AttrUbuntuesm-infra-legacy/xenial*
AttrUbuntuesm-infra/bionic*
AttrUbuntuesm-infra/focal*
AttrUbuntujammy*
AttrUbuntunoble*
AttrUbuntuquesting*
AttrUbunturesolute*
AttrUbuntuupstream*

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References

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