Netatalk up to 4.4.3 Auth insecure inherited permissions

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Netatalk up to 4.4.3. Affected by this vulnerability is an unknown functionality of the component Auth Module. This manipulation causes insecure inherited permissions. This vulnerability appears as CVE-2026-44073. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Netatalk up to 4.4.3. Affected by this vulnerability is some unknown processing of the component Auth Module. The manipulation with an unknown input leads to a insecure inherited permissions vulnerability. The CWE definition for the vulnerability is CWE-277. A product defines a set of insecure permissions that are inherited by objects that are created by the program. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions.

The advisory is shared at sourceforge.net. This vulnerability is known as CVE-2026-44073. The exploitation appears to be easy. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

Upgrading to version 4.4.3 eliminates this vulnerability. The upgrade is hosted for download at netatalk.io.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.0
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Insecure inherited permissions
CWE: CWE-277 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Netatalk 4.4.3

Timelineinfo

05/19/2026 Advisory disclosed
05/19/2026 +0 days VulDB entry created
05/24/2026 +5 days VulDB entry last update

Sourcesinfo

Advisory: sourceforge.net
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-44073 (🔒)
GCVE (CVE): GCVE-0-2026-44073
GCVE (VulDB): GCVE-100-364573

Entryinfo

Created: 05/19/2026 07:56
Updated: 05/24/2026 04:23
Changes: 05/19/2026 07:56 (53), 05/24/2026 04:23 (12)
Complete: 🔍
Cache ID: 216::103

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