Skip to main content

Netatalk CVE-2026-44066

| EUVDEUVD-2026-31212 HIGH
Out-of-bounds Read (CWE-125)
2026-05-21 securin GHSA-93hj-5v8r-h26w
7.1
CVSS 3.1 · Vendor: securin
Share

Severity by source

Vendor (securin) PRIMARY
7.1 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
SUSE
HIGH
qualitative

Primary rating from Vendor (securin).

CVSS VectorVendor: securin

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
Low

Lifecycle Timeline

1
Analysis Generated
May 21, 2026 - 08:04 vuln.today

DescriptionCVE.org

In Netatalk 3.1.0 through 4.4.2, heap out-of-bounds reads in spotlight rpc unmarshalling. Fixed in 4.4.3.

AnalysisAI

Heap out-of-bounds read in Netatalk 3.1.0 through 4.4.2 allows authenticated remote attackers to disclose sensitive memory contents and potentially crash the daemon by sending malformed Spotlight RPC requests. The flaw stems from improper bounds checking during Spotlight RPC unmarshalling and is fixed in version 4.4.3. No public exploit identified at time of analysis, and there is no evidence of active exploitation in CISA KEV.

Technical ContextAI

Netatalk is an open-source implementation of the Apple Filing Protocol (AFP) used to provide file-sharing services to macOS clients on Linux/BSD/Unix servers, commonly deployed on NAS appliances (Synology, QNAP, TrueNAS) and Time Machine backup targets. The vulnerable code path resides in the Spotlight RPC subsystem, which Netatalk exposes to allow macOS clients to perform server-side metadata searches via the same AFP/DSI session. CWE-125 (Out-of-bounds Read) here describes a parser that consumes attacker-controlled length or offset fields from a serialized Spotlight RPC message and reads heap memory past the bounds of the intended buffer, leaking adjacent heap contents or triggering a segmentation fault. The affected CPE is cpe:2.3:a:netatalk:netatalk for all versions in the 3.1.0-4.4.2 range.

RemediationAI

Vendor-released patch: Netatalk 4.4.3 - upgrade to this version or later, per the upstream advisory at https://netatalk.io/security/CVE-2026-44066. On appliances where you cannot immediately install 4.4.3 (NAS firmware that bundles Netatalk), the most effective compensating control is to disable Spotlight indexing in afp.conf by removing 'spotlight = yes' from the [Global] or per-volume sections and restarting afpd; this eliminates the vulnerable RPC handler at the cost of losing server-side macOS search. Where Spotlight cannot be disabled, restrict afpd's TCP port 548 to trusted client subnets via firewall rules and require strong AFP authentication to raise the bar against the PR:L precondition, accepting that any compromised user account is still sufficient to trigger the bug. Monitor vendor firmware channels (Synology, QNAP, TrueNAS, Debian/Ubuntu security trackers) for backported fixes referencing CVE-2026-44066.

CVE-2018-1160 CRITICAL POC
9.8 Dec 20

Netatalk before 3.1.12 is vulnerable to an out of bounds write in dsi_opensess.c. Rated critical severity (CVSS 9.8), th

CVE-2022-45188 HIGH POC
7.8 Nov 12

Netatalk through 3.1.13 has an afp_getappl heap-based buffer overflow resulting in code execution via a crafted .appl fi

CVE-2026-44050 CRITICAL
9.9 May 21

Heap buffer overflow in the Netatalk cnid_metad daemon's comm_rcv() function allows remote attackers with low-level priv

CVE-2023-42464 CRITICAL
9.8 Sep 20

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. Rated c

CVE-2022-22995 CRITICAL
9.8 Mar 25

The combination of primitives offered by SMB and AFP in their default configuration allows the arbitrary writing of file

CVE-2026-44048 HIGH
8.8 May 21

Stack-based buffer overflow in Netatalk versions 2.0.4 through 4.4.2 allows authenticated remote attackers to corrupt me

CVE-2026-44047 HIGH
8.8 May 21

SQL injection in Netatalk 3.1.0 through 4.4.2 allows authenticated remote attackers to compromise the MySQL-backed CNID

CVE-2021-31439 HIGH
8.8 May 21

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology Dis

CVE-2026-44051 HIGH
8.1 May 21

Arbitrary file read in Netatalk 3.0.2 through 4.4.2 allows authenticated remote attackers to create attacker-controlled

CVE-2026-44068 HIGH
7.6 May 21

Path traversal via extended attribute (ea) handling in Netatalk 2.1.0 through 4.4.2 allows authenticated remote attacker

CVE-2026-44055 HIGH
7.5 May 21

Shell injection in Netatalk 3.1.4 through 4.4.2 allows authenticated remote attackers to execute arbitrary OS commands t

CVE-2026-44062 HIGH
7.5 May 21

Out-of-bounds write in Netatalk versions 2.0.4 through 4.4.2 stems from a missing o_len bounds check in the pull_charset

Vendor StatusVendor

SUSE

Severity: High
Product Status
SUSE Linux Enterprise Server 12 SP5 Fixed
SUSE Linux Enterprise Server 12 SP5-LTSS Fixed
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security Fixed
SUSE Linux Enterprise Server for SAP Applications 12 SP5 Fixed
SUSE Linux Enterprise Desktop 12 Fixed

Share

CVE-2026-44066 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy