CVE-2025-22865 is a high-severity vulnerability affecting the Go programming language. This vulnerability allows for a panic condition when using the ParsePKCS1PrivateKey function to parse an RSA key that is missing the CRT values. The vulnerability was published on January 28, 2025, and has a CVSS score of 7.5, categorizing it as high severity.
Risk to organizations includes potential service disruptions due to unexpected panic scenarios when the vulnerable function is invoked. Given the high CVSS score and the nature of the vulnerability, organizations should prioritize patching immediately.
Currently, there are no known exploits for this vulnerability, and it is not included in the Known Exploited Vulnerabilities (KEV) catalog. However, the potential for exploitation remains a concern.
Organizations using the affected versions of Go should take immediate steps to remediate this vulnerability to mitigate risks associated with service disruptions.
Vulnerability Details
The official description of CVE-2025-22865 indicates that using ParsePKCS1PrivateKey to parse an RSA key missing the CRT values would panic when verifying that the key is well formed. This defect affects the robustness of cryptographic operations within Go applications.
The CVSS score for this vulnerability is 7.5, which indicates a high severity level. This score reflects the vulnerability's potential to impact confidentiality, integrity, and availability, with a high confidentiality impact and no impact on integrity or availability.
As of now, there are no specific affected products or vendor details published, and organizations should monitor updates from the Go programming language maintainers.
Technical Analysis
The root cause of this vulnerability is improper handling of RSA keys that lack necessary CRT values. The panic condition arises during the verification process of the key's structure, which is critical for ensuring the key's integrity.
The attack vector for this vulnerability is classified as network-based, allowing attackers to potentially exploit it remotely. The attack complexity is assessed as low, as no special privileges or user interaction is required to trigger the vulnerability.
The confidentiality impact is high, as unauthorized access to sensitive data may result from the panic, while the integrity and availability impacts are rated as none.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-22865 is significant. Organizations leveraging the Go programming language for cryptographic operations are at risk of service interruptions due to the panic caused by this vulnerability.
This vulnerability matters to organizations as it can lead to unexpected application behavior, potentially exposing sensitive information during a panic state. The blast radius can be extensive, impacting multiple applications or services that rely on the affected function.
Given the high CVSS score and the potential for exploitation, organizations should assess their usage of the Go programming language and prioritize remediating this vulnerability in their development and deployment cycles.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
As the specific affected versions have not been disclosed, organizations should consider all versions of the Go programming language prior to any vendor patch as potentially vulnerable.
Mitigation & Remediation
Organizations should prioritize patching by upgrading to the latest version of Go that addresses this vulnerability. If a patch is not yet available, consider implementing workarounds by validating RSA keys before passing them to the ParsePKCS1PrivateKey function.
Configuration hardening steps should also be employed, such as restricting network access to vulnerable applications and monitoring for unusual behavior that may indicate an exploitation attempt.
For further assistance, organizations can engage in penetration testing to identify similar weaknesses.
Detection Guidance
Monitoring logs for indicators of panic conditions in Go applications can assist in early detection of this vulnerability. Organizations should also look for behavioral anomalies in application performance that may suggest issues with the ParsePKCS1PrivateKey function.
Network signatures that indicate attempts to send malformed RSA keys should also be established to facilitate timely response.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-22865 highlights the importance of robust key handling in cryptographic libraries. This vulnerability demonstrates a recurring pattern of insufficient validation checks in cryptographic implementations.
Security teams should take this as a lesson to enhance code review processes and incorporate comprehensive testing for cryptographic functions. Regular security assessments can help identify similar vulnerabilities before they are exploited.
Organizations are encouraged to adopt a proactive approach to application security, including continuous monitoring and regular audits to ensure that cryptographic implementations are secure. For further reading on best practices in application security, consider reviewing our guide on application security assessments and penetration testing methodologies to strengthen your defenses.
For more information on the evolving threat landscape, refer to our insights on vulnerability management programs and the latest trends in application security.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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