CVE-2026-44740: CWE-674: Uncontrolled Recursion in go-git go-billy
The go-billy filesystem abstraction for Go prior to version 5.9.0 and including 6.0.0-alpha.1 contains vulnerabilities related to uncontrolled recursion and improper handling of malformed input. These issues can cause panics, infinite loops, or excessive resource consumption due to missing safety mechanisms like cycle detection and recursion limits. The vulnerability has been addressed in versions 5.9.0 and 6.0.0-alpha.1.
AI Analysis
Technical Summary
CVE-2026-44740 affects the go-billy component of the go-git project. Multiple components improperly handle crafted or malformed input, leading to uncontrolled recursion, infinite loops, panics, or excessive resource consumption. The root cause is insufficient validation and lack of defensive programming safeguards such as cycle detection and recursion limits when processing untrusted repository data and filesystem structures. This vulnerability is fixed in go-billy versions 5.9.0 and 6.0.0-alpha.1.
Potential Impact
Exploitation of this vulnerability can cause denial of service conditions through application panics, infinite loops, or excessive resource consumption. There is no indication of confidentiality or integrity impact. The CVSS score of 6.5 (medium severity) reflects the potential for availability disruption with low attack complexity and no user interaction required.
Mitigation Recommendations
A fix is available in go-billy versions 5.9.0 and 6.0.0-alpha.1. Users should upgrade to these versions or later to remediate the vulnerability. No vendor advisory is provided to indicate alternative mitigations or temporary fixes. Patch status is not explicitly confirmed beyond the stated fixed versions; users should verify with the official go-git/go-billy project resources for the latest remediation guidance.
CVE-2026-44740: CWE-674: Uncontrolled Recursion in go-git go-billy
Description
The go-billy filesystem abstraction for Go prior to version 5.9.0 and including 6.0.0-alpha.1 contains vulnerabilities related to uncontrolled recursion and improper handling of malformed input. These issues can cause panics, infinite loops, or excessive resource consumption due to missing safety mechanisms like cycle detection and recursion limits. The vulnerability has been addressed in versions 5.9.0 and 6.0.0-alpha.1.
CVSS v3.1
Score 6.5medium
Affected software
pkg:golang/github.com/go-git/go-billyRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-44740 affects the go-billy component of the go-git project. Multiple components improperly handle crafted or malformed input, leading to uncontrolled recursion, infinite loops, panics, or excessive resource consumption. The root cause is insufficient validation and lack of defensive programming safeguards such as cycle detection and recursion limits when processing untrusted repository data and filesystem structures. This vulnerability is fixed in go-billy versions 5.9.0 and 6.0.0-alpha.1.
Potential Impact
Exploitation of this vulnerability can cause denial of service conditions through application panics, infinite loops, or excessive resource consumption. There is no indication of confidentiality or integrity impact. The CVSS score of 6.5 (medium severity) reflects the potential for availability disruption with low attack complexity and no user interaction required.
Mitigation Recommendations
A fix is available in go-billy versions 5.9.0 and 6.0.0-alpha.1. Users should upgrade to these versions or later to remediate the vulnerability. No vendor advisory is provided to indicate alternative mitigations or temporary fixes. Patch status is not explicitly confirmed beyond the stated fixed versions; users should verify with the official go-git/go-billy project resources for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-07T18:04:17.310Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1dbba3e29bf47b501c579e
Added to database: 06/01/2026, 17:04:35 UTC
Last enriched: 06/12/2026, 11:18:45 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 59
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