https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-06T18:32:38.066072+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-212245 EUVD-2026-212245 2026-10-06T18:32:38.157365+00:00 EUVD-2026-212245 https://cve.radiocsirt.org/vuln/fkie_cve-2025-24800 fkie_cve-2025-24800 2026-10-06T18:32:38.157416+00:00

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.

 https://cve.radiocsirt.org/vuln/ghsa-wwx5-gpgr-vxr7 GHSA-wwx5-gpgr-vxr7 — ismp-grandpa crate accepted incorrect signatures 2026-10-06T18:32:38.157463+00:00

Affected: crates.io: ismp-grandpa, crates.io: grandpa-verifier-primitives, crates.io: grandpa-verifier

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.

### Description

The vulnerability manifests as a verifer that only accepts incorrect signatures of Grandpa precommits and was introduced in this [specific commit](https://github.com/polytope-labs/ismp-substrate/pull/64/commits/5ca3351a19151f1a439c30d5cbdbfdc72a11f1a8#diff-3835cc24fb2011b3e8246036059acd8c2c2a9a869eedf7a210d18edb6543318dL262). Perhaps due to unfamiliarity with core substrate APIs. The `if` statement should have included a negation check, similar to the previous code, but this was omitted. Causing the verifier to **only** accept invalid signatures.

This vulnerability remained undetected even with [integration tests](https://github.com/polytope-labs/ismp-substrate/pull/64/commits/04d5be207b082eb61d586d52e1685e2e060347e6#diff-4aedbca82d26bebc03f274e23fd5697c3346ffff54405c87af9018f3aef708b2R1-R160), as the prover was also [misconfigured](https://github.com/polytope-labs/ismp-substrate/pull/64/commits/b26894913b301061b07db61af841ca2586415f08#diff-493a6129d75fe31185e28695a4d2adc1582fe9df12462e380fe994f170fc1e70L159) to initialize the Grandpa verifier with the incorrect authority `set_id`. This causes verification of honest precommit signatures to fail as the message is now malformed, but the verifier indeed only accepts signatures or messages that fail the verification check.

But even more devas…