Vulnerability-Lookup

CVE-2026-73140 (GCVE-0-2026-73140)

Vulnerability from cvelistv5 – Published: 2026-08-11 07:18 – Updated: 2026-08-11 13:21

Title

cti-transmute Evaluation Report Exports Expose Private Comments and Author Information

Summary

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.

Severity

5.3 (Medium)


                        
                          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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-862 - Missing Authorization

Assigner

CIRCL

References

1 reference

URL	Tags
https://github.com/MISP/cti-transmute/commit/5dbd…

Impacted products

1 product

Vendor	Product	Version
MISP	cti-transmute	Affected: 0 , ≤ 1.4.0 (semver)

Credits

🕵️‍♂️ Jeroen Pinoy 🐞 Christian Studer

Show details on NVD website

JSON

To clipboard

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GCVE-1-2026-20160 (CVE-2026-73140)

Vulnerability from gna-1 – Published: 2026-08-11 07:17 – Updated: 2026-08-11 07:38

Title

cti-transmute Evaluation Report Exports Expose Private Comments and Author Information

Summary

Severity

5.3 (Medium)


                        
                          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

CWE

CWE-862 - Missing Authorization

Assigner

GNA-1

References

1 reference

URL	Tags
https://github.com/MISP/cti-transmute/commit/5dbd…	patch

Impacted products

1 product

Vendor	Product	Version
MISP	cti-transmute	Affected: 0 , ≤ 1.4.0 (semver)

Credits

🕵️‍♂️ Jeroen Pinoy 🐞 Christian Studer

JSON

To clipboard

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  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "cti-transmute",
          "repo": "https://github.com/MISP/cti-transmute",
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              "lessThanOrEqual": "1.4.0",
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    "requesterUserId": "00000000-0000-4000-9000-000000000000",
    "serial": 1,
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  },
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}

GHSA-VRRH-VGMQ-M54X

Vulnerability from github – Published: 2026-08-11 09:32 – Updated: 2026-08-11 09:32

Details

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.

Severity

5.3 (Medium)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-73140"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-11T08:17:21Z",
    "severity": "MODERATE"
  },
  "details": "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.\n\n\nConsequently, 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\u0027s 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.",
  "id": "GHSA-vrrh-vgmq-m54x",
  "modified": "2026-08-11T09:32:34Z",
  "published": "2026-08-11T09:32:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73140"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MISP/cti-transmute/commit/5dbd19b39a61eab793586731f1a80d8c38907c42"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-73140 (GCVE-0-2026-73140)

GCVE-1-2026-20160 (CVE-2026-73140)

GHSA-VRRH-VGMQ-M54X

Tags

Sightings

Nomenclature