GHSA-5JG4-P4QW-CGFR @stablelib/cbor: Stack exhaustion Denial of Service via deeply nested CBOR arrays, maps, or tags

Summary @stablelib/cbor decodes nested CBOR structures recursively and does not enforce a maximum nesting depth. A sufficiently deep attacker-controlled CBOR payload can therefore crash decoding with RangeError: Maximum call stack size exceeded. Details The decoder processes arrays, maps, and...

Improper Verification of Cryptographic Signature

Overview @stablelib/cbor is a CBOR encoder and decoder Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the verify function. An attacker can generate a second distinct valid signature for the same message without access to the private key by...

GHSA-X3FF-W252-2G7J StableLib Ed25519 Signature Malleability via Missing S < L Check

Ed25519 Signature Malleability via Missing S = L to prevent signature malleability. When S = L, SB = S mod LB = S - LB, meaning two different 32-byte S values produce the same verification result. An attacker who observes a valid signature R, S can produce a second valid signature R, S + L for th...