Highest advisory severityHigh 2 vendors · 2 advisories

CVE-2026-54369

Acl Vulnerability in NetApp Products

CVE-2026-54369: Acl Vulnerability in NetApp Products. Not in the CISA KEV catalog. High advisory severity (CVSS 8.4, NetApp).

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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CVE-2026-54369 key facts

CISA KEV: Not listed (catalog checked Oct 29, 2026)
Highest advisory severity: High
CVSS base score: 8.4 (NetApp), 7.1 (Red Hat)
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N (Red Hat)
Weakness: CWE-59
Fixed releases: Red Hat: acl-0:2.4.0-1.el10_2, acl-0:2.4.0-0.el10_0.1, acl-0:2.4.0-1.el8_10, acl-0:2.4.0-0.el8_4.1, acl-0:2.4.0-0.el8_6.1, acl-0:2.4.0-0.el8_8.1 and 44 more in the advisory
Vendor advisories: 2 from NetApp, Red Hat
VulniPulse record: Published Jul 6, 2026 · Updated Oct 9, 2026

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-54369; bulletin-wide values are not repeated here.

Is CVE-2026-54369 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-54369 is not in the CISA KEV catalog (checked Oct 29, 2026) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-54369?

Upgrade to a fixed release named by the vendor:

Red Hat: acl-0:2.4.0-1.el10_2, acl-0:2.4.0-0.el10_0.1, acl-0:2.4.0-1.el8_10, acl-0:2.4.0-0.el8_4.1, acl-0:2.4.0-0.el8_6.1, acl-0:2.4.0-0.el8_8.1

Restrict unprivileged users from creating symlinks in directories that privileged processes operate on with ACL commands. Where possible, use the fs.protected_symlinks sysctl (enabled by default on RHEL 7+), which prevents symlink following in world-writable sticky directories unless the owner of the symlink matches the owner of the target file or directory. (Red Hat)

Vendor advisory comparison

NetApp

1 advisory

Advisory severityHigh8.4
High [CVE-2026-54369] Acl Vulnerability in NetApp Products
NTAP-20260828-0010Source published Aug 28, 2026Source updated Oct 9, 2026
Acl versions prior to 2.4.0 are susceptible to a vulnerability which when successfully exploited could lead to disclosure of sensitive information, or addition or modification of data. NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.
Affected products in this advisory
No product details extracted. Check the source bulletin.
Source-reported affected versions
2.4.0
Source-reported fixed versions
No fixed-version detail extracted. This does not mean no fix exists.
Mitigation guidance
No mitigation guidance extracted; consult the source.
Full advisory and evidence Open source bulletin

Red Hat

1 advisory

Advisory severityHigh7.1
High [CVE-2026-54369] Symlink traversal privilege escalation via libacl functions
CVE-2026-54369Source published Jun 29, 2026Source updated Jun 29, 2026
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. A flaw was found in the `acl` package, specifically within its `libacl` pathname-based functions. Exploitation requires local access with the ability to create symlinks in a directory that a privileged program later processes with acl_get_file() or…
Affected products in this advisory
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
34 more entries in the full advisory.
Source-reported affected versions
< 2.4.0
Source-reported fixed versions
acl-0:2.4.0-1.el10_2
acl-0:2.4.0-0.el10_0.1
acl-0:2.4.0-1.el8_10
acl-0:2.4.0-0.el8_4.1
46 more entries in the full advisory.
Mitigation guidance
Restrict unprivileged users from creating symlinks in directories that privileged processes operate on with ACL commands. Where possible, use the fs.protected_symlinks sysctl (enabled by default on RHEL 7+), which prevents symlink following in world-writable sticky directories unless the owner of the symlink matches the owner of the target file or directory.
Full advisory and evidence Open source bulletin

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