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CVE-2026-73140— cti-transmute Evaluation Report Exports Expose Private Comments and Author Information

Quick assessment

Affected
MISP cti-transmute
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.

MISP cti-transmute是MISP组织的一款威胁情报数据格式转换工具。 MISP cti-transmute 1.4.0及之前版本存在授权问题漏洞，该漏洞源于生成评估报告导出时未应用评论级访问控制规则，可能导致用户导出评估报告获取私有评论信息。

CVSS 5.3 · Medium EPSS 0.35% · P28

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
MISP cti-transmute ≤ 1.4.0 affected
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I. Basic Information for CVE-2026-73140

Vulnerability Information
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Vulnerability Title
cti-transmute Evaluation Report Exports Expose Private Comments and Author Information
Source: CVE Program / CVE List V5
Vulnerability Description
Affected versions of cti-transmute fail to apply comment-level access-control rules when generating evaluation report exports. Although normal comment retrieval filters comments according to conversion visibility, comment privacy, ownership, authorship, and administrative privileges, build_evaluation_report() previously included all evaluation comments without applying those rules. Consequently, a user who was authorized to view a conversion could export its evaluation report as Markdown or PDF and obtain private evaluation comments that should only have been visible to the conversion owner, the comment author, or an administrator. The leaked report data also contained the comment author's name. The fix passes the requesting user into the report builder and filters every evaluation comment using the shared access.can_see_comment() authorization function.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
MISP cti-transmute 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MISP cti-transmute是MISP组织的一款威胁情报数据格式转换工具。 MISP cti-transmute 1.4.0及之前版本存在授权问题漏洞，该漏洞源于生成评估报告导出时未应用评论级访问控制规则，可能导致用户导出评估报告获取私有评论信息。
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
MISP cti-transmute 0 ~ 1.4.0 -

II. Public POCs for CVE-2026-73140

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III. Intelligence Information for CVE-2026-73140

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Patches & Fixes for CVE-2026-73140 (1)

Same Patch Batch · MISP · 2026-08-11 · 9 CVEs total

CVE-2026-73160 8.7 HIGH cti-transmute Unauthenticated SSRF via Hostnames Resolving to Internal IP Addresses
CVE-2026-73155 5.3 MEDIUM cti-transmute Missing Authorization Allows Reactions to Private Comments
CVE-2026-73156 5.3 MEDIUM cti-transmute Sunburst and Treemap Tooltips Allow Cross-Site Scripting via Crafted Convers
CVE-2026-73162 5.3 MEDIUM cti-transmute CSRF Allows Unauthorized Follow and Notification State Changes
CVE-2026-73158 5.1 MEDIUM cti-transmute Saved Graph Configuration Allows Stored Cross-Site Scripting via svgIcon
CVE-2026-73159 5.1 MEDIUM cti-transmute Stored XSS via Crafted Tag Icon on Admin Triage Interface
CVE-2026-73161 5.1 MEDIUM cti-transmute Conversion Table Allows XSS via Unescaped Cell Content During Search Highlig
CVE-2026-73157 2.3 LOW cti-transmute Remote MISP Event Browser Allows Cross-Site Scripting via Malicious Event Me

IV. Related Vulnerabilities

Same product: cti-transmute
Same vendor: MISP
Same weakness: CWE-862