- Issued:
- 2026-09-28
- Updated:
- 2026-09-28
RHSA-2026:72820 - Security Advisory
Synopsis
Important: acl security update
Type/Severity
Security Advisory: Important
Red Hat Lightspeed patch analysis
Identify and remediate systems affected by this advisory.
Topic
An update for acl is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
Access Control Lists (ACLs) are used to define fine-grained discretionary access rights for files and directories. The acl packages contain the getfacl and setfacl utilities needed for manipulating access control lists.
Security Fix(es):
- acl: Symlink traversal privilege escalation via libacl functions (CVE-2026-54369)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
Affected Products
- Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.4 x86_64
- Red Hat Enterprise Linux Server - AUS 8.4 x86_64
- Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle Long Life 8.4 aarch64
- Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle Long Life 8.4 ppc64le
- Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle Long Life 8.4 s390x
Fixes
- BZ - 2490277 - CVE-2026-54369 acl: Symlink traversal privilege escalation via libacl functions
CVEs
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.4
| SRPM | |
|---|---|
| acl-2.4.0-0.el8_4.1.src.rpm | SHA-256: e6ba7f044dbda5a2afce177e2ea75a08c417bbaca358d68a4ee2594ac31498cf |
| x86_64 | |
| acl-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: f8f4616a0e5e9e8384dcd0e223dc46a50fd9fc3e94bec6c8ce4e62d0b102f639 |
| acl-debuginfo-2.4.0-0.el8_4.1.i686.rpm | SHA-256: ac704d1c5e9daa8807831cf7546ea724cb719794ad8eefd463a64dba1568049a |
| acl-debuginfo-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: 1a3b8f92aee2f53f78e198d68e5dafb83252b0fd9ddca239e667d5e0db847367 |
| acl-debugsource-2.4.0-0.el8_4.1.i686.rpm | SHA-256: bdccd0e3463fb561da078b53f7e9409602a0d0745efa58eba73ad18040b8d787 |
| acl-debugsource-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: e3aa5be92a2e2091e27154ae37628ad8c890e8ec07b2838fc047b4eb822af027 |
| libacl-2.4.0-0.el8_4.1.i686.rpm | SHA-256: 4ea56ea7646bd2f17485494c295a34a643e0293518915a38649218e0d7d4ee99 |
| libacl-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: 7886f64ad1766c4dbf2150945db69e7d299044c2d6c953192790394439ae529b |
| libacl-debuginfo-2.4.0-0.el8_4.1.i686.rpm | SHA-256: bdfe1fb6488f5db275d20036493e02bd4dbb8178165059666055d669ad835002 |
| libacl-debuginfo-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: e92db3d0dd99edf76e3bfcfceeca3a2315fae05d6c9aacc7469ccf1378476d25 |
| libacl-devel-2.4.0-0.el8_4.1.i686.rpm | SHA-256: 1e17a20e8683a7fb91cdf5ca9c2c2be7cd1dac94de31102fe2c4a0cd5fc43d2e |
| libacl-devel-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: 562ed7a690b1354bc4e34acacc01f5846fb1a8b26c25fb0f357f2a76631586e0 |
Red Hat Enterprise Linux Server - AUS 8.4
| SRPM | |
|---|---|
| acl-2.4.0-0.el8_4.1.src.rpm | SHA-256: e6ba7f044dbda5a2afce177e2ea75a08c417bbaca358d68a4ee2594ac31498cf |
| x86_64 | |
| acl-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: f8f4616a0e5e9e8384dcd0e223dc46a50fd9fc3e94bec6c8ce4e62d0b102f639 |
| acl-debuginfo-2.4.0-0.el8_4.1.i686.rpm | SHA-256: ac704d1c5e9daa8807831cf7546ea724cb719794ad8eefd463a64dba1568049a |
| acl-debuginfo-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: 1a3b8f92aee2f53f78e198d68e5dafb83252b0fd9ddca239e667d5e0db847367 |
| acl-debugsource-2.4.0-0.el8_4.1.i686.rpm | SHA-256: bdccd0e3463fb561da078b53f7e9409602a0d0745efa58eba73ad18040b8d787 |
| acl-debugsource-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: e3aa5be92a2e2091e27154ae37628ad8c890e8ec07b2838fc047b4eb822af027 |
| libacl-2.4.0-0.el8_4.1.i686.rpm | SHA-256: 4ea56ea7646bd2f17485494c295a34a643e0293518915a38649218e0d7d4ee99 |
| libacl-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: 7886f64ad1766c4dbf2150945db69e7d299044c2d6c953192790394439ae529b |
| libacl-debuginfo-2.4.0-0.el8_4.1.i686.rpm | SHA-256: bdfe1fb6488f5db275d20036493e02bd4dbb8178165059666055d669ad835002 |
| libacl-debuginfo-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: e92db3d0dd99edf76e3bfcfceeca3a2315fae05d6c9aacc7469ccf1378476d25 |
| libacl-devel-2.4.0-0.el8_4.1.i686.rpm | SHA-256: 1e17a20e8683a7fb91cdf5ca9c2c2be7cd1dac94de31102fe2c4a0cd5fc43d2e |
| libacl-devel-2.4.0-0.el8_4.1.x86_64.rpm | SHA-256: 562ed7a690b1354bc4e34acacc01f5846fb1a8b26c25fb0f357f2a76631586e0 |
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle Long Life 8.4
| SRPM | |
|---|---|
| acl-2.4.0-0.el8_4.1.src.rpm | SHA-256: e6ba7f044dbda5a2afce177e2ea75a08c417bbaca358d68a4ee2594ac31498cf |
| aarch64 | |
| acl-2.4.0-0.el8_4.1.aarch64.rpm | SHA-256: d493f0ee66f99d0a0f504d59cdf29b2bac8979208fa7a34a328191bd2c7da0b1 |
| acl-debuginfo-2.4.0-0.el8_4.1.aarch64.rpm | SHA-256: c7b3d950a25d78227990ba3fe905a55aec90b42d6f96b93aa02fbfe49d35aff7 |
| acl-debugsource-2.4.0-0.el8_4.1.aarch64.rpm | SHA-256: 351cfcc9eeabe7498fc44e08644812975dcb5fada375fd1bc374463df3a34f37 |
| libacl-2.4.0-0.el8_4.1.aarch64.rpm | SHA-256: a91c9fff4c08a7c10daaa79ccafdf96bf7fb5ff80819de09517bf4aad8d0320e |
| libacl-debuginfo-2.4.0-0.el8_4.1.aarch64.rpm | SHA-256: b3457adac8f2a4900e7595a82dfff5f098d592666206eecb7da8d1faefc496bb |
| libacl-devel-2.4.0-0.el8_4.1.aarch64.rpm | SHA-256: becfba9a5b1db9d3a0b1cb92f8e28aef91743c872a280db97daaff3a1912a47c |
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle Long Life 8.4
| SRPM | |
|---|---|
| acl-2.4.0-0.el8_4.1.src.rpm | SHA-256: e6ba7f044dbda5a2afce177e2ea75a08c417bbaca358d68a4ee2594ac31498cf |
| ppc64le | |
| acl-2.4.0-0.el8_4.1.ppc64le.rpm | SHA-256: f5fb19e8056715cac12559db8a794641e62456d4a1b81934601e15e44b2c748f |
| acl-debuginfo-2.4.0-0.el8_4.1.ppc64le.rpm | SHA-256: 3db51af5087fd5a7bf83f96de5ebbb365cf39a450a8090d2c2d3997d5bbe00ab |
| acl-debugsource-2.4.0-0.el8_4.1.ppc64le.rpm | SHA-256: 4216ed9dfdb7f271538e177cc9279ff1ded7ad5a9a3e75a3e4ef0e1eacbc98f3 |
| libacl-2.4.0-0.el8_4.1.ppc64le.rpm | SHA-256: 4a2487274a702a259fdac60f8211d8d83818f0c354ac361669bc80f13d5c5d77 |
| libacl-debuginfo-2.4.0-0.el8_4.1.ppc64le.rpm | SHA-256: 525c795dfd48af10df882fa5bb5c62a19976174d105eb5e5257acd690e34af74 |
| libacl-devel-2.4.0-0.el8_4.1.ppc64le.rpm | SHA-256: 62ade5c54ac7dd2b051d549b983b9605d0a89076f93fa47996d4e5a0b1c8f374 |
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle Long Life 8.4
| SRPM | |
|---|---|
| acl-2.4.0-0.el8_4.1.src.rpm | SHA-256: e6ba7f044dbda5a2afce177e2ea75a08c417bbaca358d68a4ee2594ac31498cf |
| s390x | |
| acl-2.4.0-0.el8_4.1.s390x.rpm | SHA-256: ded8b7ead46f13aa8db2d42e956d49fcc39cdaf56fdfef059212fb745080c429 |
| acl-debuginfo-2.4.0-0.el8_4.1.s390x.rpm | SHA-256: 960720398fa1849cf4d1c4426f7f9b6f777e3ccd9f73ce5c33cbaaa301f483fb |
| acl-debugsource-2.4.0-0.el8_4.1.s390x.rpm | SHA-256: cf7cf309da51f1229d8c7dbdf7293bfb0bbb243828f00955fcc7c4ee938fb068 |
| libacl-2.4.0-0.el8_4.1.s390x.rpm | SHA-256: 32d47a7911fc87b4e5c96c1e1b73ea3873ab4bdecde5965f1239a944951420bb |
| libacl-debuginfo-2.4.0-0.el8_4.1.s390x.rpm | SHA-256: 5da450e7c24bca7dca01b32bc3d6dfc7eefe94d8c98f40aa51652751dd1a0fb6 |
| libacl-devel-2.4.0-0.el8_4.1.s390x.rpm | SHA-256: b7f180fef3ab009c335d7db7a5d2078b1a85f3f11116f17eeea7af122702b444 |
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