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CVE-2026-82521— parsedmarc 9.0.6 < 11.0.1 Path Traversal via Forensic Report Subject

Quick assessment

Affected
domainaware parsedmarc
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.

domainaware parsedmarc是domainaware组织的一款解析DMARC报告的邮件安全分析工具。 domainaware parsedmarc 9.0.6至11.0.1之前版本存在路径遍历漏洞，该漏洞源于输出路径由邮件主题派生且清理不当，当主题完全为路径遍历序列时，文件名清理函数产生空字符串并回退至原始未清理主题，导致文件被写入预期样本目录之外，攻击者可利用特制邮件主题将点开头的文件写入配置输出路径的上级目录。

CVSS 5.3 · Medium EPSS 0.43% · P36

Affected Version Matrix 1

VendorProduct Version RangeStatus
domainaware parsedmarc 9.0.6< 11.0.1 affected
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I. Basic Information for CVE-2026-82521

Vulnerability Information
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Vulnerability Title
parsedmarc 9.0.6 < 11.0.1 Path Traversal via Forensic Report Subject
Source: CVE Program / CVE List V5
Vulnerability Description
parsedmarc 9.0.6 before 11.0.1 writes forensic report sample files using an output path derived from the email subject. When the subject consists entirely of path traversal sequences, the filename sanitization function produces an empty string, and a fallback to the raw unsanitized subject causes the resulting file to be written outside the intended samples directory. An attacker who can cause a forensic failure report with a crafted Subject to be processed can write a dot-prefixed file with attacker-controlled content to an ancestor directory of the configured samples output path. Exploitation requires that file output for forensic report samples is enabled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
domainaware parsedmarc 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
domainaware parsedmarc是domainaware组织的一款解析DMARC报告的邮件安全分析工具。 domainaware parsedmarc 9.0.6至11.0.1之前版本存在路径遍历漏洞，该漏洞源于输出路径由邮件主题派生且清理不当，当主题完全为路径遍历序列时，文件名清理函数产生空字符串并回退至原始未清理主题，导致文件被写入预期样本目录之外，攻击者可利用特制邮件主题将点开头的文件写入配置输出路径的上级目录。
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
domainaware parsedmarc 9.0.6 ~ 11.0.1 -

II. Public POCs for CVE-2026-82521

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III. Intelligence Information for CVE-2026-82521

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Vendor Advisories for CVE-2026-82521 (2)

Vendor Pages for CVE-2026-82521 (1)

IV. Related Vulnerabilities

Same product: parsedmarc
Same vendor: domainaware
Same weakness: CWE-22

V. Comments for CVE-2026-82521

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