openzeppelin_cairo_contracts is vulnerable to denial of service. The vulnerability exists because the account signature implementation is not properly handled which renders unusable account contracts in live networks causing an application crash.
github.com/advisories/GHSA-8mjr-jr5h-q2xr
github.com/OpenZeppelin/cairo-contracts/blob/release-0.2.0/src/openzeppelin/account/library.cairo#L203
github.com/OpenZeppelin/cairo-contracts/commit/2cd60279c3332285d47edf9ee3888b71257acdc9
github.com/OpenZeppelin/cairo-contracts/issues/386
github.com/OpenZeppelin/cairo-contracts/pull/387
github.com/OpenZeppelin/cairo-contracts/releases/tag/v0.2.1
github.com/OpenZeppelin/cairo-contracts/security/advisories/GHSA-8mjr-jr5h-q2xr