PT-2025-30107 · Go · Github.Com/Babylonlabs-Io/Babylon/V2

Published 2025-07-08 · Updated 2025-07-08

OSV

CVSS v4.0

8.9

High

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

Summary

Sending a message that modifies the validator set at the epoch boundary halts the chain.

Impact

Denial of Service - Comos-sdk prevents modifying the validator set from two different modules - https://github.com/cosmos/cosmos-sdk/blob/release/v0.50.x/types/module/module.go#L811. Such an operation leads to panic and chain halt.

Detailed Post mortem

https://boiling-lake-106.notion.site/2025-06-18-Genesis-mainnet-chain-halt-post-mortem-229f60cc1b5f80b7adf5e3ea0541ea87

Fix

Improper Check for Exceptional Conditions

Weakness Enumeration

CWE-754

Related Identifiers

GHSA-RJ53-J6JW-7F7G

Affected Products

Github.Com/Babylonlabs-Io/Babylon/V2

References · 6

• https://osv.dev/vulnerability/GHSA-rj53-j6jw-7f7g · Vendor Advisory
• https://github.com/babylonlabs-io/babylon · Note
• https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-rj53-j6jw-7f7g · Note
• https://github.com/babylonlabs-io/babylon/releases/tag/v2.1.0 · Note
• https://github.com/babylonlabs-io/babylon/pull/1244/files · Note
• https://boiling-lake-106.notion.site/2025-06-18-Babylon-Genesis-Chain-Halt-Post-Mortem-229f60cc1b5f80b7adf5e3ea0541ea87 · Note