CVE-2026-111991

WongKinYiu yolov9 ONNX Metadata common.py DetectMultiBackend.init code injection

CVSS score

5.3

EPSS probability

—

Risk score

0.5

Published

19 h ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

CVE-2026-111991: WongKinYiu yolov9 ONNX Metadata Handler Code Injection

Sources read

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

A security vulnerability in WongKinYiu yolov9 0.1 causes code injection within the ONNX Metadata Handler. Remote exploitation is possible and a public exploit has been disclosed.

Why does it matter?

This vulnerability allows remote attacks to be performed and compromises system security through code injection.

What should be done?

Follow vendor advisories
Monitor related issue reports and updates

Chain of evidence and sources2 verified claims

WongKinYiu yolov9 0.1 sürümünde ONNX Metadata Handler bileşenini etkileyen bir kod enjeksiyonu açığı bulunmaktadır.

S0 · daybreach-canonical S1 · nvd

Zafiyet için kamuya açıklanmış bir istismar mevcuttur ve proje yönetimi henüz yanıt vermemiştir.

S0 · daybreach-canonical S1 · nvd

Show the technical text from the sources

A security vulnerability has been detected in WongKinYiu yolov9 0.1. This vulnerability affects the function DetectMultiBackend.__init__ of the file models/common.py of the component ONNX Metadata Handler. The manipulation of the argument names/stride leads to code injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CWE: CWE-94, CWE-74

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-111991 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	WongKinYiu	yolov9	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
7.5	CVSS V2	—	AV:N/AC:L/Au:N/C:P/I:P/A:P	NVD
7.5	CVSS V2_0	—	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C	CVE CNA
6.3	CVSS V31	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L	NVD
6.3	CVSS V3_1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C	CVE CNA
6.3	CVSS V3_0	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C	CVE CNA
5.3	CVSS V4_0	MEDIUM	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	CVE CNA
2.1	CVSS V40	LOW	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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	NVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-111991 is associated with the following CWEs:

CWE-94: Improper Control of Generation of Code ('Code Injection')CWE-74: Common Weakness Enumeration Entry CWE-74

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-111991 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsGerekmiyor

User—

Official Sources and Advisories

VDB-421656 | WongKinYiu yolov9 ONNX Metadata common.py DetectMultiBackend.__init__ code injectionvendor-advisory VDB-421656 | CTI Indicators (IOB, IOC, TTP, IOA)vendor-advisory CVE-2026-111991 | CVE Analysis and Reportvendor-advisory Submit #1007973 | WongKinYiu yolov9 up to commit 5b1ea9a8b3f0ffe4fe0e203ec6232d788bb3fcff (master HEAD, 2024-06-10) Code Injectionvendor-advisory https://github.com/WongKinYiu/yolov9/issues/670vendor-advisory https://github.com/WongKinYiu/yolov9/vendor-advisory

CVSS Vector Radar Chart

5.3 / 10

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone required

User InteractionP

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)P

Availability (Erişilebilirlik)Low

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

WongKinYiu

Weakness Type (CWE & CAPEC)

CWE-94 CWE-74

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