CVE-2026-0895— Insecure Deserialization in extension "Mailqueue" (mailqueue)
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I. Basic Information for CVE-2026-0895
Vulnerability Information
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Vulnerability Title
Insecure Deserialization in extension "Mailqueue" (mailqueue)
Source: NVD (National Vulnerability Database)
Vulnerability Description
The extension extends TYPO3’ FileSpool component, which was vulnerable to Insecure Deserialization prior to TYPO3-CORE-SA-2026-004 https://typo3.org/security/advisory/typo3-core-sa-2026-004 . Since the related fix is overwritten by the extension, using the extension with a patched TYPO3 core version still allows for Insecure Deserialization, because the affected vulnerable code was extracted from TYPO3 core to the extension. More information about this vulnerability can be found in the related TYPO3 Core Security Advisory TYPO3-CORE-SA-2026-004 https://typo3.org/security/advisory/typo3-core-sa-2026-004 .
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
TYPO3 extension mailqueue 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TYPO3 extension mailqueue是TYPO3开源的一个邮件扩展。 TYPO3 extension mailqueue存在安全漏洞，该漏洞源于不安全的反序列化。
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 |
|---|---|---|---|---|
| TYPO3 | Extension "Mailqueue" | 0 ~ 0.4.3 | - |
II. Public POCs for CVE-2026-0895
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|---|
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IV. Related Vulnerabilities
Same vendor: TYPO3
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Broken Access Control in extension "Redirect Tab" - CVE-2026-1323
Insecure Deserialization in extension "Mailqueue" (mailqueue - CVE-2026-0859
TYPO3 CMS Allows Insecure Deserialization via Mailer File Sp
Same weakness: CWE-502
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PhpSpreadsheet SSRF and RCE via PHP stream wrappers in IOFac - CVE-2026-7712
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V. Comments for CVE-2026-0895
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