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Vulnerability Details :

CVE-2026-44363

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-13 May, 2026 | 19:16
Updated At-14 May, 2026 | 12:31
Rejected At-
Credits

Unsafe remote resource fetching in expansion misp-modules

MISP modules are autonomous modules that can be used to extend MISP for new services. Prior to 3.0.7, an unsafe remote resource fetching vulnerability existed in MISP Modules expansion modules. The html_to_markdown module accepted arbitrary HTTP(S) URLs without sufficient validation, which could allow Server-Side Request Forgery against loopback, private, or link-local network resources. Additionally, the qrcode module disabled TLS certificate verification when retrieving remote images, exposing requests to potential man-in-the-middle interception or response tampering. The issue was fixed by validating URL schemes, blocking local and private address ranges, resolving hostnames before fetching, enforcing request timeouts, and re-enabling TLS certificate verification. This vulnerability is fixed in 3.0.7.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:13 May, 2026 | 19:16
Updated At:14 May, 2026 | 12:31
Rejected At:
▼CVE Numbering Authority (CNA)
Unsafe remote resource fetching in expansion misp-modules

MISP modules are autonomous modules that can be used to extend MISP for new services. Prior to 3.0.7, an unsafe remote resource fetching vulnerability existed in MISP Modules expansion modules. The html_to_markdown module accepted arbitrary HTTP(S) URLs without sufficient validation, which could allow Server-Side Request Forgery against loopback, private, or link-local network resources. Additionally, the qrcode module disabled TLS certificate verification when retrieving remote images, exposing requests to potential man-in-the-middle interception or response tampering. The issue was fixed by validating URL schemes, blocking local and private address ranges, resolving hostnames before fetching, enforcing request timeouts, and re-enabling TLS certificate verification. This vulnerability is fixed in 3.0.7.

Affected Products
Vendor
MISP
Product
misp-modules
Versions
Affected
  • < 3.0.7
Problem Types
TypeCWE IDDescription
CWECWE-295CWE-295: Improper Certificate Validation
CWECWE-918CWE-918: Server-Side Request Forgery (SSRF)
Type: CWE
CWE ID: CWE-295
Description: CWE-295: Improper Certificate Validation
Type: CWE
CWE ID: CWE-918
Description: CWE-918: Server-Side Request Forgery (SSRF)
Metrics
VersionBase scoreBase severityVector
4.05.8MEDIUM
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H
Version: 4.0
Base score: 5.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/MISP/misp-modules/security/advisories/GHSA-fhq3-2gf3-8f3j
x_refsource_CONFIRM
https://github.com/MISP/misp-modules/commit/01a522f2772fc31eeed379ccf23750c8a3d401db
x_refsource_MISC
Hyperlink: https://github.com/MISP/misp-modules/security/advisories/GHSA-fhq3-2gf3-8f3j
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/MISP/misp-modules/commit/01a522f2772fc31eeed379ccf23750c8a3d401db
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:13 May, 2026 | 20:16
Updated At:14 May, 2026 | 16:54

MISP modules are autonomous modules that can be used to extend MISP for new services. Prior to 3.0.7, an unsafe remote resource fetching vulnerability existed in MISP Modules expansion modules. The html_to_markdown module accepted arbitrary HTTP(S) URLs without sufficient validation, which could allow Server-Side Request Forgery against loopback, private, or link-local network resources. Additionally, the qrcode module disabled TLS certificate verification when retrieving remote images, exposing requests to potential man-in-the-middle interception or response tampering. The issue was fixed by validating URL schemes, blocking local and private address ranges, resolving hostnames before fetching, enforcing request timeouts, and re-enabling TLS certificate verification. This vulnerability is fixed in 3.0.7.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.05.8MEDIUM
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/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: Secondary
Version: 4.0
Base score: 5.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/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
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-295Primarysecurity-advisories@github.com
CWE-918Primarysecurity-advisories@github.com
CWE ID: CWE-295
Type: Primary
Source: security-advisories@github.com
CWE ID: CWE-918
Type: Primary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/MISP/misp-modules/commit/01a522f2772fc31eeed379ccf23750c8a3d401dbsecurity-advisories@github.com
N/A
https://github.com/MISP/misp-modules/security/advisories/GHSA-fhq3-2gf3-8f3jsecurity-advisories@github.com
N/A
Hyperlink: https://github.com/MISP/misp-modules/commit/01a522f2772fc31eeed379ccf23750c8a3d401db
Source: security-advisories@github.com
Resource: N/A
Hyperlink: https://github.com/MISP/misp-modules/security/advisories/GHSA-fhq3-2gf3-8f3j
Source: security-advisories@github.com
Resource: N/A

Change History

0
Information is not available yet

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