Executive Summary

CVE-2025-70949 affects the @perfood/couch-auth package, version 0.26.0 and earlier. It is an observable timing discrepancy vulnerability within the authentication logic.

This flaw allows remote attackers to perform side-channel attacks by measuring timing differences during token validation.

By exploiting these timing variations, attackers can infer or guess sensitive tokens used in the authentication process.

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Impact Analysis

This vulnerability can potentially lead to unauthorized access or compromise of user accounts.

Attackers exploiting the timing side-channel can gain sensitive information that should be protected during authentication.

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Compliance Impact

I don't know

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Detection Guidance

This vulnerability involves an observable timing discrepancy in the authentication logic of @perfood/couch-auth v0.26.0, which can be detected by measuring timing differences during token validation.

To detect this vulnerability on your system or network, you would typically perform timing analysis on authentication requests to observe if there are measurable differences in response times that correlate with token validity.

Specific commands or tools are not provided in the available resources, but common approaches include using timing attack scripts or network analysis tools that measure response times precisely, such as curl with timing options or custom scripts in Python or other languages to send authentication requests and measure response delays.

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Mitigation Strategies

The provided resources do not specify immediate mitigation steps for this vulnerability.

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