CVE-2025-70949: @perfood/couch-auth Observable Timing Discrepancy Vulnerability
Summary
CVE-2025-70949: @perfood/couch-auth has an Observable Timing Discrepancy. Affects @perfood/couch-auth versions < 0.26.0. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The @perfood/couch-auth package is a Node.js library designed for authentication in CouchDB applications. It provides a simple interface for managing user sessions and securing access to resources. However, version 0.26.0 of this package is vulnerable to an observable timing discrepancy, which can be exploited by attackers to infer sensitive information based on the timing of responses from the server.
Vulnerability Detail
An observable timing discrepancy in @perfood/couch-auth v0.26.0 allows attackers to exploit timing side-channel attacks. This vulnerability arises when the time taken to process requests varies based on the input, enabling attackers to deduce information about the validity of certain inputs. The ramifications include unauthorized access to sensitive data, as attackers can infer valid usernames or tokens based on response times.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a temporary workaround, consider implementing additional security measures such as rate limiting and input validation to mitigate the risk of timing attacks until the package can be updated.
Conclusion
The @perfood/couch-auth package has a significant vulnerability (CVE-2025-70949) due to an observable timing discrepancy in version 0.26.0. It is crucial to update to a patched version to protect against potential attacks that could exploit this issue. Implementing additional security measures can help mitigate risks until the update is applied.
See every vulnerability recorded for @perfood/couch-auth →
FAQ
An observable timing discrepancy occurs when the time taken to process requests varies based on the input, allowing attackers to infer information based on response times.
This vulnerability can allow attackers to gain unauthorized access to sensitive information by deducing valid credentials or tokens through timing analysis.
Yes, updating to a version later than 0.26.0 of the @perfood/couch-auth package will resolve this vulnerability.
Implement security measures such as rate limiting and input validation to reduce the risk of exploitation until you can update the package.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json file. You can also check if your application is affected by this vulnerability using the Vulert playground without any signup.
Related vulnerabilities
Recent vulnerabilities recorded for @perfood/couch-auth.