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GO-2023-1826
No affected components available
Signature validation canonicalizes the input XML document before validating the signature. Parsing the uncanonicalized and canonicalized forms can produce different results. An attacker can exploit this variation to bypass signature validation.
Users of signature validation must only parse the canonicalized form of the validated document. The Validator.Validate function does not return the canonical form, and cannot be used safely. Users should only use the Validator.ValidateReferences function and only parse the canonical form which it returns.
The Validator.Validate function was removed in github.com/moov-io/signedxml v1.1.0.
Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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