nginx-http-flv-module is a media streaming server based on nginx-rtmp-module. Prior to version 1.2.14, if a server received an HTTP/1.0 request without a header Host, which was permitted by HTTP core of Nginx, then r->headers_in.host was NULL, nginx-http-flv-module used r->headers_in.host->value to make a pseudo tcUrl, so NULL-pointer dereference happened. This issue has been patched in version 1.2.14.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
winshining nginx-http-flv-module affected
Version Status Constraints
< 1.2.14 affected —

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/winshining/nginx-http-flv-module/security/advisories/GHSA-8mc6-jrxv-29g9 cve-icon cve-icon
https://www.chtsecurity.com/news/b15d7b24-0a5e-4962-8b52-e4754e5af4f8?lang=en cve-icon cve-icon
History

Wed, 11 Nov 2026 21:15:00 +0000

Type Values Removed Values Added
Description nginx-http-flv-module is a media streaming server based on nginx-rtmp-module. Prior to version 1.2.14, if a server received an HTTP/1.0 request without a header Host, which was permitted by HTTP core of Nginx, then r->headers_in.host was NULL, nginx-http-flv-module used r->headers_in.host->value to make a pseudo tcUrl, so NULL-pointer dereference happened. This issue has been patched in version 1.2.14.
Title NULL-pointer dereference (DoS) in nginx-http-flv-module
Weaknesses CWE-476
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-11-11T21:06:33.886Z

Reserved: 2026-07-23T18:54:15.832Z

Link: CVE-2026-65982

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-11T21:16:46.903

Modified: 2026-11-11T21:16:46.903

Link: CVE-2026-65982

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses