How severe is GHSA-4jmp-x7mh-rgmr?

No CVSS score has been assigned to GHSA-4jmp-x7mh-rgmr yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-4jmp-x7mh-rgmr?

GHSA-4jmp-x7mh-rgmr affects the following packages: github.com/babylonlabs-io/finality-provider (Go), github.com/babylonlabs-io/finality-provider (Go), github.com/babylonlabs-io/finality-provider (Go), github.com/babylonlabs-io/finality-provider (Go). Ecosystems affected: Go.

How do I fix GHSA-4jmp-x7mh-rgmr?

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.

How do I detect GHSA-4jmp-x7mh-rgmr in my Go dependencies?

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.

How do I mitigate GHSA-4jmp-x7mh-rgmr if there is no patch (or I can't update yet)?

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.

Is GHSA-4jmp-x7mh-rgmr actively exploited in the wild?

No public exploit code has been indexed for GHSA-4jmp-x7mh-rgmr yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-4jmp-x7mh-rgmr published, and has it been updated?

GHSA-4jmp-x7mh-rgmr was published on December 12, 2025 and was last updated on February 3, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹 Go

Not in CISA KEV

Finality Provider vulnerable to anti-slashing bypassing due to misconfigurationGHSA-4jmp-x7mh-rgmr

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.

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

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`github.com/babylonlabs-io/finality-provider`	all versions	1.0.4`go get github.com/babylonlabs-io/finality-provider@v1.0.4`
🐹Go	`github.com/babylonlabs-io/finality-provider`	all versions	No fix
🐹Go	`github.com/babylonlabs-io/finality-provider`	all versions	No fix
🐹Go	`github.com/babylonlabs-io/finality-provider`	all versions	No fix

Detection & mitigation playbook

Open-source dependency

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.
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.
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.

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

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