Vulnerability in Polytope-Labs Hyperbridge

CVE-2025-24800

Hyperbridge is a hyper-scalable coprocessor for verifiable, cross-chain interoperability. A critical vulnerability was discovered in the ismp-grandpa crate, that allowed a malicious prover easily convince the verifier of the finality of arbitrary headers. This could be used to steal funds or compromise other kinds of cross-chain applications. This vulnerability is fixed in 15.0.1.

EPSS: 0.003 (22.7th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-24800?
CVE-2025-24800 is a vulnerability in Polytope-Labs Hyperbridge, classified under Improper Verification of Cryptographic Signature. Published 2025-01-28.
Is CVE-2025-24800 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.