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CVE-2026-111760 Exploitation: Git Patches Flaw Analysis

This analysis delves into the CVE-2026-111760 vulnerability in Git, detailing its exploitation method and implications for security. Understanding this flaw is crucial for defending against potential attacks.

CVE-2026-111760

Valitrix11 November 20265 min read

CVE-2026-111760 Exploitation: Git Patches Flaw Analysis - Blog Cover Image

At a Glance

Category: Threat Intelligence
Severity: Not specified in the source article
Exploitation status: Not specified in the source article
CVEs referenced: CVE-2026-111760
MITRE ATT&CK: 2 techniques referenced
Indicators of compromise: Not specified in the source article

Executive SummaryRisk level: High

What happened

A significant flaw, tracked as CVE-2026-111760, was discovered in Git, allowing malicious repositories to execute arbitrary code during recursive clones, including submodules.

Who is affected

All users of Git versions between 2.50 and 2.56.1 are affected, particularly those utilizing recursive cloning features.

Why it matters

The vulnerability represents a severe risk as it enables remote code execution on user systems, potentially leading to further exploitation and data breaches.

Immediate recommended actions

Update Git to version 2.56.1 or apply backported fixes from affected versions.
Review repository sources before cloning, especially when using recursive options.
Implement monitoring for unusual activities related to Git operations.

Key Technical Findings

Vulnerability / Campaign Type

Integer truncation leading to remote code execution.

Affected Systems

Git versions 2.50 through 2.56.1.

Initial Access Vector

Cloning malicious repositories recursively.

Execution Method

Execution occurs upon cloning due to improper handling of the index.

Persistence

Not specified in the source material.

Privilege Escalation

Not specified in the source material.

Defense Evasion

Not specified in the source material.

Credential Access

Not specified in the source material.

Lateral Movement

Not specified in the source material.

Data Exfiltration

Not specified in the source material.

Impact Level

High – risks of unauthorized code execution on user systems.

Technical Background

The vulnerability represented by CVE-2026-111760 stems from an integer truncation issue within Git’s index handling system. This flaw can be exploited when a user performs a recursive clone operation on a malicious repository that contains submodules. The attacker can craft these submodules to execute arbitrary code upon cloning, thus compromising the user’s environment immediately without any additional user interaction.

The typical objective for attackers exploiting this vulnerability would be to gain unauthorized access, install malware, or establish a foothold for further exploitation within the target environment. Security controls that rely on standard repository validation or cloning processes may be bypassed due to the nature of this vulnerability, emphasizing the need for heightened scrutiny and additional defensive measures.

Attack Chain Analysis

Initial Access

Activity Users clone a malicious repository recursively.

Evidence Detection of unusual clone operations from known compromised repositories.

Telemetry Git logs showing recursive clone actions.

Detection opportunity Monitor for suspicious clone commands in Git logs.

Deep Technical Behavior Analysis

The exploitation method relies on how Git processes submodules during recursive cloning. When a user executes a command to clone a repository with submodules, Git will also attempt to clone those linked repositories. If any of these submodules are malicious, they can contain scripts or binaries designed to execute on the user’s system without explicit consent. The exploitation takes place because of improper validation and handling of input during the indexing process, allowing attackers to inject malicious payloads seamlessly into the execution flow.

Potential behaviors observed include modifications to system files or the introduction of unauthorized scripts that may attempt to connect to external command and control (C2) servers. These behaviors require validation through comprehensive monitoring and analysis of system changes post-cloning. Additionally, users should be educated on safe cloning practices and repository verification.

Indicators of Compromise

No indicators of compromise were provided in the source material.

Indicators of Behavior

Behavioral Indicator	Description	Data Source	Confidence
Suspicious Clone Operations	Frequent cloning from untrusted sources or repositories.	Git logs, EDR solutions.	Potential

Detection Engineering Guidance

T1071 — Application Layer Protocols

Objective Detect unauthorized repository access attempts.
Suspicious pattern Unusual patterns in clone requests from repositories.
Data source Git logs, network traffic logs.
False positives Legitimate repository cloning activities.
Response Alert and investigate suspicious activities immediately.

Detection queryindex=gitlogs (command='clone *') | stats count by user, repo | where count > 5

Recommended Log Sources

Platform	Log Source	What to Look For	Priority
Git Server	Access Logs	Suspicious clone requests from external IPs.	High
EDR Solutions	Process Monitoring Logs	Unusual processes spawned following Git operations.	High

MITRE ATT&CK Mapping

Tactic	Technique ID	Technique Name	Relevance	Detection Opportunity	Confidence
Execution	T1203	Exploitation for Client Execution	This technique is relevant due to the code execution potential via Git cloning.	Suspicious cloning activity in logs.	Reported

Incident Response Guidance

Validate the integrity of cloned repositories immediately.
Preserve evidence by capturing system states before remediation actions.
Isolate affected systems to prevent further exploitation.
Collect detailed logs related to Git operations.
Hunt for additional indicators of compromise across the network.
Rotate credentials where suspicious activity is detected.
Remove any persistence mechanisms installed via exploitation.
Patching Git installations across all affected systems is critical.

Remediation and Hardening

Implement strict policies around repository cloning practices.
Audit existing repositories for potential vulnerabilities or malicious content.
Keep all software up-to-date with the latest security patches.

Business Risk

The flaw can lead to significant service disruption if exploited within active development environments.
Potential data exposure risks if sensitive information is compromised through unauthorized code execution.</li
The organization may face regulatory scrutiny depending on the data that could be accessed or leaked through this vulnerability.

Executive Takeaway

Leadership must understand the critical nature of this vulnerability and prioritize immediate patching efforts. Validation of security controls post-remediation is essential to ensure no residual risk remains from potential exploit attempts.

Validating Your Defenses with Valitrix

The Valitrix breach and attack simulation platform enables organizations to continuously validate their defenses against techniques such as those represented by CVE-2026-111760. By emulating these specific attack vectors, teams can ensure detection mechanisms are functioning correctly and identify any gaps in their security posture.
Utilizing real-world scenarios aligned with the MITRE ATT&CK framework, Valitrix allows security teams to proactively test their response capabilities against potential exploitation scenarios, ensuring robust defenses against similar vulnerabilities in the future.

Key Takeaways

CVE-2026-111760 highlights serious risks associated with recursive cloning in Git repositories.
Patching affected Git versions is critical to mitigate risks from this vulnerability.
Auditing repository sources prior to cloning can prevent potential exploitation.
The use of detection tools can enhance visibility into suspicious Git operations across environments.

Frequently Asked Questions

What is CVE-2026-111760?

CVE-2026-111760 is a vulnerability in Git that allows malicious repositories to execute arbitrary code during recursive clones, posing significant security risks for users who clone untrusted repositories.

How does the Git vulnerability allow for code execution?

The vulnerability occurs due to improper handling of indices during recursive cloning, enabling attackers to inject malicious code through submodules automatically cloned alongside legitimate repositories.

What should I do if I suspect an exploit?

If an exploit is suspected, immediately isolate affected systems, validate integrity checks on cloned repositories, and ensure all software is updated with the latest patches to mitigate risks.

The techniques in this article map directly to Valitrix validation modules — test your own controls against them:

#Adversarial Exposure Validation#Breach and Attack Simulation#CVE analysis#CVE-2026-111760#Git vulnerabilities#Git vulnerability#malicious repositories#MITRE ATT&CK#security research#security validation platform#Threat Analysis

Written by

Valitrix

Valitrix writes for Valitrix on continuous Breach and Attack Simulation, MITRE ATT&CK-aligned validation, and hardening security controls across endpoint, email, and network surfaces.

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CVE-2026-111760 Exploitation: Git Patches Flaw Analysis | Valitrix