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GHSA-rj53-j6jw-7f7g v2

Fix: babylonlabs-io/babylon#1244

GHSA-rj53-j6jw-7f7g is a security vulnerability in github.com/babylonlabs-io/babylon/v2. A fix is available for github.com/babylonlabs-io/babylon/v2 — see the affected versions and patch details below.

Babylon vulnerable to chain halt when a message modifies the validator set at the epoch boundary

Also known asGO-2025-3801
Published
Jul 8, 2025
Updated
Jul 28, 2025
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Jul 28, 2025 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐹github.com/babylonlabs-io/babylon/v2

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

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

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/babylonlabs-io/babylon/v22.0.0&&< 2.1.02.1.0go get github.com/babylonlabs-io/babylon/v2@v2.1.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/babylonlabs-io/babylon/v2, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/babylonlabs-io/babylon/v2 to 2.1.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-rj53-j6jw-7f7g is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-rj53-j6jw-7f7g can be triaged on real exposure rather than presence alone.

Tailored to GHSA-rj53-j6jw-7f7g. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### 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
O3 Security · Impact-Aware SCA

Is GHSA-rj53-j6jw-7f7g in your dependencies?

O3 Security finds GHSA-rj53-j6jw-7f7g across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-rj53-j6jw-7f7g: v2 DoS | O3 Security