Red Hat Enterprise Linux 10: Relative Path Traversal
CVE-2026-14476 is a high-severity relative path traversal vulnerability in Red Hat Enterprise Linux 10 from Red Hat, with a CVSS 3.1 base score of 8.0 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.67% chance of exploitation within 30 days, higher than 53% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Red Hat Enterprise Linux 10 you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
Version data comes from the organisation that assigned the CVE; 2 further products are omitted here. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (redhat.com).
Official description
A path traversal flaw was found in SSSD's AD GPO provider. The ad_gpo_extract_smb_components() function does not sanitize .. sequences in the gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management access to write files outside the GPO cache directory as root. On default RHEL configurations with SELinux enforcing, this can be used to inject Kerberos configuration leading to authentication bypass.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Relative Path Traversal
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as.. that can resolve to a location that is outside of that directory.
How developers prevent this class of flaw
- Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
- access.redhat.com/errata/RHSA-2026:41937
- access.redhat.com/errata/RHSA-2026:42122
- access.redhat.com/errata/RHSA-2026:46482
- access.redhat.com/errata/RHSA-2026:46990
- access.redhat.com/errata/RHSA-2026:49839
- access.redhat.com/errata/RHSA-2026:49840
- access.redhat.com/errata/RHSA-2026:49841
- access.redhat.com/errata/RHSA-2026:49842
- access.redhat.com/errata/RHSA-2026:49843
- access.redhat.com/errata/RHSA-2026:49844
- access.redhat.com/errata/RHSA-2026:50109
- access.redhat.com/errata/RHSA-2026:54187
- access.redhat.com/errata/RHSA-2026:54553
- access.redhat.com/errata/RHSA-2026:54581
- access.redhat.com/errata/RHSA-2026:54599
Other vulnerabilities in Red Hat Enterprise Linux 10
- 8.8 High severity
- 7.5 High severity
- 7.5 High severity
- 7.9 High severity
- 7.3 High severity
- 7.5 High severity
Recent Relative Path Traversal vulnerabilities
- 7.1 High severity
- 8.0 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 10.0 Critical severity
Spotted an error? Tell us.