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CVE-2026-73140: CWE-862 Missing Authorization in MISP cti-transmute

0
Medium
VulnerabilityCVE-2026-73140cvecve-2026-73140cwe-862
Published: 08/11/2026 (08/11/2026, 07:18:05 UTC)
Source: CVE Database V5
Vendor/Project: MISP
Product: cti-transmute

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.

CVSS v4.0

Score 5.3medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
Low
Subsq. Integrity
None
Subsq. Availability
None
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

Affected software

GitHub Actionsmore threats →cve
cti-transmute
pkg:github/cti-transmute
Affected versions
<=1.4.0

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Data Version
5.2
Assigner Short Name
CIRCL
Date Reserved
2026-08-11T07:18:03.417Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a7ad257bf8831d5395884ae

Added to database: 08/11/2026, 07:42:15 UTC

Last updated: 08/11/2026, 07:42:15 UTC

Views: 1

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