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CVE-2026-44059— Non-reentrant privilege toggle

Quick assessment

Affected
Netatalk Netatalk
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Netatalk是Netatalk开源的一款软件，为 Classic Mac OS 和 macOS 在 Unix-like OS 上提供 AFP 文件服务器功能。 Netatalk 2.2.5版本至4.4.2版本存在竞争条件问题漏洞，该漏洞源于权限切换机制中的竞争条件，可能导致本地攻击者获取有限信息、修改有限数据或造成轻微服务中断。

CVSS 3.9 · Medium EPSS 0.07% · P0

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 2

VendorProduct Version RangeStatus
Netatalk Netatalk 2.2.5≤ 4.4.2 affected
4.5.0 unaffected
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I. Basic Information for CVE-2026-44059

Vulnerability Information
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Vulnerability Title
Non-reentrant privilege toggle
Source: CVE Program / CVE List V5
Vulnerability Description
A race condition in the privilege toggle mechanism in Netatalk 2.2.5 through 4.4.2 allows a local attacker to obtain limited information, modify limited data, or cause a minor service disruption.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
Netatalk 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netatalk是Netatalk开源的一款软件，为 Classic Mac OS 和 macOS 在 Unix-like OS 上提供 AFP 文件服务器功能。 Netatalk 2.2.5版本至4.4.2版本存在竞争条件问题漏洞，该漏洞源于权限切换机制中的竞争条件，可能导致本地攻击者获取有限信息、修改有限数据或造成轻微服务中断。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Netatalk Netatalk 2.2.5 ~ 4.4.2 -

II. Public POCs for CVE-2026-44059

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III. Intelligence Information for CVE-2026-44059

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Vendor Advisories for CVE-2026-44059 (1)

Same Patch Batch · Netatalk · 2026-05-21 · 33 CVEs total

CVE-2026-44050 9.9 CRITICAL Heap buffer overflow in CNID daemon comm_rcv()
CVE-2026-44047 8.8 HIGH SQL injection in MySQL CNID backend
CVE-2026-44048 8.8 HIGH Stack buffer overflow via UCS-2 type confusion in convert_charset()
CVE-2026-44051 8.1 HIGH Arbitrary file read via attacker-controlled symlink creation
CVE-2026-44068 7.6 HIGH EA path traversal via incomplete sanitization
CVE-2026-44062 7.5 HIGH Missing o_len bounds check in pull_charset_flags()
CVE-2026-44055 7.5 HIGH Bitwise OR logic bug enables shell injection
CVE-2026-44052 7.5 HIGH LDAP simple-bind password exposure in log output
CVE-2026-44060 7.5 HIGH Integer underflow in dsi_writeinit() leads to denial of service
CVE-2026-44049 7.5 HIGH Out-of-bounds write in convert_charset() null termination
CVE-2026-44053 7.4 HIGH Weak cryptography in DHCAST128 UAM
CVE-2026-44064 7.1 HIGH ASP session ID out-of-bounds access
CVE-2026-44066 7.1 HIGH Heap out-of-bounds reads in Spotlight RPC unmarshalling
CVE-2026-44076 6.7 MEDIUM Shell injection via volume path
CVE-2026-44054 6.5 MEDIUM Predictable afpd session token
CVE-2026-44058 6.4 MEDIUM Authentication bypass via admin auth user
CVE-2026-44056 6.0 MEDIUM Stack buffer overflow in desktop.c
CVE-2026-44061 5.9 MEDIUM DES-ECB auth with timing side channel
CVE-2026-44063 4.2 MEDIUM LDAP filter injection
CVE-2026-44073 4.0 MEDIUM seteuid failure ignored in auth modules

Showing top 20 of 33 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Netatalk
Same vendor: Netatalk
Same weakness: CWE-362

V. Comments for CVE-2026-44059

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