CVE-2025-25285 is a medium-severity vulnerability affecting the @octokit/endpoint npm package. This vulnerability allows attackers to exploit a flaw in the `endpoint.parse(options)` function, which can lead to a regular expression denial-of-service (ReDoS) attack. The issue arises when specific `options` parameters are crafted, resulting in the function hanging and causing high CPU utilization. This vulnerability impacts versions 4.1.0 through 10.1.3 of the package, and it has been patched in version 10.1.3.
The risk to organizations includes potential service disruptions due to elevated CPU usage, which could impact application performance and user experience. As such, organizations utilizing this package are strongly encouraged to prioritize patching to mitigate the risk associated with this vulnerability.
As of now, there are no known exploits or public proof-of-concept available for this vulnerability. However, given its nature, organizations should be proactive in implementing the necessary updates.
Organizations should address this vulnerability in their priority patch cycle to ensure continued application performance and security.
Vulnerability Details
This vulnerability allows a regular expression denial-of-service (ReDoS) attack through the @octokit/endpoint npm package. The issue specifically exists in the `parse` function located in the `parse.ts` file. The vulnerability has a CVSS score of 5.3, indicating a medium severity level, with an attack vector classified as NETWORK and low attack complexity.
The CVSS vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, reflecting minimal impacts on confidentiality and integrity, while indicating a low impact on availability.
The vulnerability was published on February 14, 2025, and is currently classified as deferred. The associated CWE is CWE-1333.
Technical Analysis
The root cause of this vulnerability stems from how the `endpoint.parse(options)` function processes crafted input. Attackers may leverage this flaw by submitting specially manipulated parameters that exploit the regular expression used in the parsing logic.
The attack vector is network-based, meaning it can be executed remotely without requiring physical access to the system. The attack complexity is classified as low, indicating that the exploit can be easily executed by an attacker with no special privileges or user interaction required.
The vulnerability impacts the availability of the application, as successful exploitation can lead to high CPU utilization and application hangs, effectively denying service to legitimate users.
Risk & Impact Analysis
Organizations should evaluate the real-world deployment risk associated with this vulnerability. The potential blast radius includes any application utilizing the @octokit/endpoint package, which could be widespread given the package's use in various REST API integrations.
Risk to organizations includes service disruption, degraded performance, and potential loss of user trust. Given the medium severity rating, organizations should address this vulnerability in their priority patch cycle to ensure minimal disruption and maintain operational integrity.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of the @octokit/endpoint package include all versions starting from 4.1.0 up to, but not including, 10.1.3. Organizations should ensure that they are using version 10.1.3 or later to mitigate this vulnerability.
Mitigation & Remediation
Organizations should apply the patch provided in version 10.1.3 of the @octokit/endpoint package immediately. If upgrading is not feasible, consider implementing input validation and request throttling as temporary workarounds to mitigate the risk of exploitation.
For comprehensive security, organizations may also consider utilizing penetration testing services to proactively identify potential vulnerabilities in their applications.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor application logs for unusual CPU utilization patterns and request anomalies. Additionally, maintaining awareness of system performance metrics can help identify potential denial-of-service conditions.
AppSecure Threat Intelligence Insight
While this vulnerability is currently classified as medium severity, it reflects a growing trend of vulnerabilities that can lead to ReDoS attacks. As applications increasingly rely on complex regular expressions for input parsing, security teams must remain vigilant in their security assessments.
Organizations should implement robust coding standards and conduct regular security assessments, including penetration testing methodologies to identify and remediate such vulnerabilities before they can be exploited.
Furthermore, security awareness training for developers regarding safe coding practices and the potential risks associated with regular expressions can significantly reduce the risk of similar vulnerabilities emerging in the future.
To stay updated on security trends and best practices, organizations are encouraged to engage with the security community and leverage resources such as vulnerability management programs to enhance their overall security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

.webp)