CVE-2026-58803
Published Nov 10, 2026
Modified Nov 10, 2026
Description
In bytes_are_equal of lib.rs, there is a possible way to recover authentication keys due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
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EPSS — Exploit Prediction
0.0014
Probability of exploitation
0.04%
Percentile rank
EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.
References
Frequently Asked Questions
What is CVE-2026-58803? +
In bytes_are_equal of lib.rs, there is a possible way to recover authentication keys due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
How do I check if I'm vulnerable to CVE-2026-58803? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.
