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GHSA-4jmp-x7mh-rgmr finality-provider

Fix: babylonlabs-io/finality-provider@721bf5b

GHSA-4jmp-x7mh-rgmr is a security vulnerability in github.com/babylonlabs-io/finality-provider. A fix is available for github.com/babylonlabs-io/finality-provider — see the affected versions and patch details below.

Finality Provider vulnerable to anti-slashing bypassing due to misconfiguration

Also known asGO-2025-4236
Published
Dec 12, 2025
Updated
Feb 3, 2026
Affected
4 pkgs
Patched
1 / 4
Exploits
None indexed
Exploitation data as of Feb 3, 2026 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

4 pkgs affected
🐹github.com/babylonlabs-io/finality-provider🐹github.com/babylonlabs-io/finality-provider🐹github.com/babylonlabs-io/finality-provider🐹github.com/babylonlabs-io/finality-provider

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

The anti-slashing is not effective if the attacker can access EOTS manager endpoints.

Impact

If the EOTS manager endpoints are open to public without HMAC protection, the attacker can manually cause slashing of the finality provider through the RPC endpoints.

Report credits go to: x.com/RebelsRunways

Affected Packages

4 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/babylonlabs-io/finality-providerall versions1.0.4go get github.com/babylonlabs-io/finality-provider@v1.0.4
🐹Gogithub.com/babylonlabs-io/finality-providerall versionsNo fix
🐹Gogithub.com/babylonlabs-io/finality-providerall versionsNo fix
🐹Gogithub.com/babylonlabs-io/finality-providerall versionsNo fix

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/finality-provider, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/babylonlabs-io/finality-provider to 1.0.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4jmp-x7mh-rgmr 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-4jmp-x7mh-rgmr can be triaged on real exposure rather than presence alone.

Tailored to GHSA-4jmp-x7mh-rgmr. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Summary The anti-slashing is not effective if the attacker can access EOTS manager endpoints. ### Impact If the EOTS manager endpoints are open to public without HMAC protection, the attacker can manually cause slashing of the finality provider through the RPC endpoints. Report credits go to: x.com/RebelsRunways
O3 Security · Impact-Aware SCA

Is GHSA-4jmp-x7mh-rgmr in your dependencies?

O3 Security finds GHSA-4jmp-x7mh-rgmr across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-4jmp-x7mh-rgmr: finality-provider | O3 Security