Bug 2490277 (CVE-2026-54369) - CVE-2026-54369 acl: Symlink traversal privilege escalation via libacl functions
Summary: CVE-2026-54369 acl: Symlink traversal privilege escalation via libacl functions
Keywords:
Status: NEW
Alias: CVE-2026-54369
Deadline: 2026-06-29
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2494174
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-18 10:53 UTC by OSIDB Bzimport
Modified: 2026-10-15 13:53 UTC (History)
18 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2026:46358 0 None None None 2026-07-27 00:06:53 UTC
Red Hat Product Errata RHBA-2026:46361 0 None None None 2026-07-27 00:31:26 UTC
Red Hat Product Errata RHBA-2026:46503 0 None None None 2026-07-27 10:23:23 UTC
Red Hat Product Errata RHBA-2026:46711 0 None None None 2026-07-27 14:45:59 UTC
Red Hat Product Errata RHBA-2026:46957 0 None None None 2026-07-27 20:42:39 UTC
Red Hat Product Errata RHBA-2026:47097 0 None None None 2026-07-28 14:46:11 UTC
Red Hat Product Errata RHBA-2026:47774 0 None None None 2026-07-29 11:12:04 UTC
Red Hat Product Errata RHSA-2026:42736 0 None None None 2026-07-21 15:03:30 UTC
Red Hat Product Errata RHSA-2026:42739 0 None None None 2026-07-21 15:15:02 UTC
Red Hat Product Errata RHSA-2026:43420 0 None None None 2026-07-22 10:20:27 UTC
Red Hat Product Errata RHSA-2026:54769 0 None None None 2026-08-18 12:25:33 UTC
Red Hat Product Errata RHSA-2026:64805 0 None None None 2026-09-08 04:27:38 UTC
Red Hat Product Errata RHSA-2026:67140 0 None None None 2026-09-14 13:37:55 UTC
Red Hat Product Errata RHSA-2026:67142 0 None None None 2026-09-14 13:38:13 UTC
Red Hat Product Errata RHSA-2026:67144 0 None None None 2026-09-14 13:40:35 UTC
Red Hat Product Errata RHSA-2026:70586 0 None None None 2026-10-01 12:28:54 UTC
Red Hat Product Errata RHSA-2026:71440 0 None None None 2026-09-30 11:09:04 UTC
Red Hat Product Errata RHSA-2026:71442 0 None None None 2026-09-29 11:25:06 UTC
Red Hat Product Errata RHSA-2026:71444 0 None None None 2026-09-29 11:26:09 UTC
Red Hat Product Errata RHSA-2026:71656 0 None None None 2026-09-24 16:37:03 UTC
Red Hat Product Errata RHSA-2026:72819 0 None None None 2026-09-28 18:35:07 UTC
Red Hat Product Errata RHSA-2026:72820 0 None None None 2026-09-28 18:35:04 UTC
Red Hat Product Errata RHSA-2026:73851 0 None None None 2026-10-08 09:36:23 UTC
Red Hat Product Errata RHSA-2026:73866 0 None None None 2026-10-08 09:19:39 UTC
Red Hat Product Errata RHSA-2026:77320 0 None None None 2026-10-15 13:53:34 UTC

Description OSIDB Bzimport 2026-06-18 10:53:34 UTC 
acl before version 2.4.0 contains a symlink traversal vulnerability in the libacl pathname-based functions acl_get_file(), acl_set_file(), acl_extended_file(), and acl_delete_def_file() that allows local attackers to escalate privileges by replacing any pathname component with a symbolic link. Attackers who control any component of a pathname processed by a privileged caller can redirect ACL read or write operations to arbitrary files or directories, enabling unauthorized manipulation of access control lists and local privilege escalation.
Comment 2 errata-xmlrpc 2026-07-21 15:03:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:42736 https://access.redhat.com/errata/RHSA-2026:42736
Comment 3 errata-xmlrpc 2026-07-21 15:15:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:42739 https://access.redhat.com/errata/RHSA-2026:42739
Comment 4 errata-xmlrpc 2026-07-22 10:20:26 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:43420 https://access.redhat.com/errata/RHSA-2026:43420
Comment 7 errata-xmlrpc 2026-08-18 12:25:32 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.22

Via RHSA-2026:54769 https://access.redhat.com/errata/RHSA-2026:54769
Comment 8 errata-xmlrpc 2026-09-08 04:27:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:64805 https://access.redhat.com/errata/RHSA-2026:64805
Comment 9 Jon Orris 2026-09-14 13:37:53 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:67140 https://access.redhat.com/errata/RHSA-2026:67140
Comment 10 Jon Orris 2026-09-14 13:38:11 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:67142 https://access.redhat.com/errata/RHSA-2026:67142
Comment 11 Jon Orris 2026-09-14 13:40:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:67144 https://access.redhat.com/errata/RHSA-2026:67144
Comment 12 Jon Orris 2026-09-24 16:37:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:71656 https://access.redhat.com/errata/RHSA-2026:71656
Comment 13 Jon Orris 2026-09-28 18:35:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:72820 https://access.redhat.com/errata/RHSA-2026:72820
Comment 14 Jon Orris 2026-09-28 18:35:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Via RHSA-2026:72819 https://access.redhat.com/errata/RHSA-2026:72819
Comment 15 Jon Orris 2026-09-29 11:25:04 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.20

Via RHSA-2026:71442 https://access.redhat.com/errata/RHSA-2026:71442
Comment 16 Jon Orris 2026-09-29 11:26:08 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.21

Via RHSA-2026:71444 https://access.redhat.com/errata/RHSA-2026:71444
Comment 17 Jon Orris 2026-09-30 11:09:02 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.19

Via RHSA-2026:71440 https://access.redhat.com/errata/RHSA-2026:71440
Comment 18 Jon Orris 2026-10-01 12:28:52 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.17

Via RHSA-2026:70586 https://access.redhat.com/errata/RHSA-2026:70586
Comment 21 Jon Orris 2026-10-08 09:19:37 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.14

Via RHSA-2026:73866 https://access.redhat.com/errata/RHSA-2026:73866
Comment 22 Jon Orris 2026-10-08 09:36:22 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.16

Via RHSA-2026:73851 https://access.redhat.com/errata/RHSA-2026:73851
Comment 23 Jon Orris 2026-10-15 13:53:32 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.13

Via RHSA-2026:77320 https://access.redhat.com/errata/RHSA-2026:77320
Note You need to log in before you can comment on or make changes to this bug.