CVE-2025-47906 identifies a medium-severity vulnerability related to the Golang programming language, specifically within its 'go' component. This vulnerability allows certain strings passed to the LookPath function, such as "", ".", and "..", to unexpectedly return binaries listed in the PATH environment variable when those paths contain executables rather than just directories. The CVSS score for this vulnerability is 6.5, indicating a moderate level of risk that organizations should consider.
Risk to organizations includes potential misconfiguration leading to unauthorized access or execution of unintended binaries, which may compromise system integrity. Given the nature of the vulnerability, which is network-exploitable with low complexity, it is crucial for organizations leveraging Golang to pay immediate attention to this issue.
Even though no known exploits are currently reported, the vulnerability’s exploitability score indicates a medium chance of exploitation. Organizations should prioritize addressing this vulnerability within their patch management cycle. It is important to note that the vulnerability has been analyzed and publicized, but a patch has not yet been released.
Organizations should schedule remediation in their priority patch cycle to prevent potential exploitation of this flaw, especially if they use Golang in critical applications.
Vulnerability Details
The vulnerability allows unexpected returns from the LookPath function due to incorrect handling of the PATH environment variable. The affected product, Golang's 'go', is essential for various applications, and this flaw could have serious implications if left unaddressed.
This vulnerability has a CVSS score of 6.5, classified as medium severity, and it affects all versions of 'go' prior to version 1.24.6 and from versions 1.23.12 to 1.24.0.
Technical Analysis
The root cause of CVE-2025-47906 stems from the handling of the PATH variable, which can lead executables to be executed unexpectedly based on the strings passed to LookPath. The attack vector is through network, and the attack complexity is low, requiring no privileges or user interaction, which amplifies the risk significantly.
Confidentiality impact is low, as unauthorized access to sensitive information is not a direct result of this flaw. However, the availability impact is also low, meaning that the availability of the application could be affected if malicious binaries are executed inadvertently.
Risk & Impact Analysis
Real-world deployment risk associated with this vulnerability is significant, particularly for organizations that rely on Golang for critical infrastructure. The potential for unintended executable returns could lead to unauthorized actions being taken in the system, which could have wider implications depending on the environment's security posture.
The blast radius for this vulnerability is concerning, as it may affect multiple systems relying on Golang. Urgency assessment based on CVSS indicates that organizations should address this vulnerability in their priority patch cycle to mitigate risks effectively.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Golang's 'go' component prior to 1.24.6 and from 1.23.12 to 1.24.0 are affected by this vulnerability. Organizations should ensure they upgrade to the latest version to mitigate this risk.
Mitigation & Remediation
To mitigate this vulnerability, organizations should upgrade to the patched version of Golang as soon as it is available. If immediate patching is not possible, consider implementing configuration hardening by ensuring that the PATH variable does not include executable paths that could lead to unintended consequences.
For further guidance on security testing, organizations can utilize penetration testing services to validate the effectiveness of their remediation efforts.
Detection Guidance
Organizations should monitor logs for unusual patterns of executable paths being accessed or executed, especially when the paths contain unexpected binaries. Behavioral anomalies in applications utilizing Golang should also be scrutinized to prevent potential exploitation.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-47906 lies in the increasing complexity of environment variables and their potential misconfigurations. Organizations must recognize this trend and implement robust security measures to manage their configurations effectively.
This vulnerability represents a pattern of oversight that can lead to severe consequences if not addressed. Security teams should take proactive measures to assess their applications and ensure that environment variables are appropriately managed.
Strategic defensive takeaways include emphasizing the importance of code reviews and security assessments to catch such vulnerabilities early in the development lifecycle. For comprehensive security testing practices, organizations should refer to our penetration testing methodology to ensure a robust security posture.
Additionally, organizations should consider reviewing their vulnerability management programs to effectively identify and remediate vulnerabilities like CVE-2025-47906.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)