Python 3.9.1 HMAC.compare_digest Constant-Time Defeat via Accumulator
CVE-2022-48566 Published on August 22, 2023
An issue was discovered in compare_digest in Lib/hmac.py in Python through 3.9.1. Constant-time-defeating optimisations were possible in the accumulator variable in hmac.compare_digest.
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Exploit Probability
EPSS
0.10%
Percentile
27.18%
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.