Know every vulnerabilitybefore it knows you.
DevGuard continuously monitors your dependencies and alerts you when CVEs like this one affect your stack — with real-time threat intelligence built for developers.
RUSTSEC-2026-0012
No affected components available
Summary
The asm! block enabled by the off-by-default asm feature, when enabled on ARMv8 targets, misspecified the operand
type for all of its operands, using in for pointers and values which were subsequently mutated by operations performed
within the assembly block.
Impact
It's unclear what practical impact, if any, this actually had. Incorrect operand types are technically undefined behavior, however changing them had no actual impact on the generated assembly for these targets. The possibility still exists that it may lead to potential memory safety or other issues on hypothetical future versions of rustc.
Mitigation
The operand types were changed from in to inout, and the impacted versions of the keccak crate were yanked.
Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
Continuously monitor your dependencies and get alerted when vulnerabilities like this one affect your stack.
Checkout DevGuard