The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade svix
to version 1.17.0 or higher.
Affected versions of this package are vulnerable to Authentication Bypass due to an issue in the verify
function where signatures of different lengths are incorrectly compared. An attacker can bypass signature verification by providing a shorter signature that matches the beginning of the actual signature.
Note:
The attacker would need to know a victim uses the Rust library for verification,no easy way to automatically check that; and uses webhooks
by a service that uses Svix
, and then figure out a way to craft a malicious payload that will actually include all of the correct identifiers needed to trick the receivers to cause actual issues.