Fedora ProFTPD Update Fixes ACL Bypass Vulnerability CVE-2026-35025

Linuxsecurity

Fedora ProFTPD Update Fixes ACL Bypass Vulnerability CVE-2026-35025

First seen 30 Jul 2026, 05:21 UTC • •57.9

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ThreatCluster •July 30, 2026 at 22:28 UTC

•Fedora released a patch for ProFTPD addressing CVE-2026-35025.
•The vulnerability allows ACL bypass via /proc/self/root, risking unauthorized file access.
•System administrators should update using 'dnf' to mitigate potential security risks.

Fedora has released an update for ProFTPD addressing CVE-2026-35025, which involves an ACL bypass via the /proc/self/root path prefix. This vulnerability could allow unauthorized file access through procfs filesystems, potentially compromising system security. The update introduces a new module, mod_procfs, which is enabled by default to mitigate this risk. Users are encouraged to audit their Linux privileges to limit potential escalations and damage. The vulnerability was published on June 24, 2026, and affects multiple versions of the ProFTPD server. The update can be installed using the 'dnf' package manager. System administrators should apply the patch promptly to secure their systems against this vulnerability.

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Timeline

2026-06-24

CVE-2026-35025 published

CVE-2026-35025 details an ACL bypass vulnerability in ProFTPD affecting file access through procfs filesystems.

2026-07-16

ProFTPD version 1.3.9c-2 rebuilt

Fedora Release Engineering rebuilt ProFTPD version 1.3.9c-2 as part of the update process.

2026-07-21

ProFTPD version 1.3.9c-3 released

Paul Howarth released ProFTPD version 1.3.9c-3, adding mod_procfs to address the ACL bypass vulnerability.

2026-07-30

Patch available for ProFTPD ACL bypass

Fedora advises users to apply the latest ProFTPD update to prevent unauthorized file access due to CVE-2026-35025.

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Threat Graph

6 entities, 5 inferred relationships (STIX 2.1).

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Organization (1)

Fedora

Vulnerability (1)

CVE-2026-35025

Weakness (2)

CWE-269 - Improper Privilege Management
CWE-862 - Missing Authorization

Affected Platform (2)

Linux
ProFTPD

Relationships

CVE-2026-35025 targets Linux
CVE-2026-35025 targets ProFTPD
CVE-2026-35025 related to Fedora
CVE-2026-35025 related to CWE-269 - Improper Privilege Management
CVE-2026-35025 related to CWE-862 - Missing Authorization

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