GHSA-2fcv-qww3-9v6h: Github.com/babylonlabs io/babylon/v4 Babylon's Malformed Vote Extensions Are Vulnerability
HIGHGHSA-2fcv-qww3-9v6h is a HIGH babylon's malformed vote extensions are vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) affecting Github.com/babylonlabs io/babylon/v4 libraries in the Go ecosystem. The issue involves babylon's malformed vote extensions are not rejected. Remediation is available by upgrading affected packages to version 4.1.0.
GHSA-2fcv-qww3-9v6h at a Glance
How to Fix GHSA-2fcv-qww3-9v6h
To remediate this vulnerability, upgrade all affected Github.com/babylonlabs io/babylon/v4 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/babylonlabs-io/babylon/v4 to 4.1.0Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/babylonlabs-io/babylon/v4How to Check if You Are Affected
To determine whether your application is affected by GHSA-2fcv-qww3-9v6h, inspect your project dependencies for Github.com/babylonlabs io/babylon/v4:
inspect dependencies for github.com/babylonlabs-io/babylon/v4Analyze the terminal output to locate any version of Github.com/babylonlabs io/babylon/v4 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.1.0), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-770: Allocation of Resources Without Limits or Throttling, where the product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. In Github.com/babylonlabs io/babylon/v4, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
GHSA-2fcv-qww3-9v6h Affected Github.com/babylonlabs io/babylon/v4 Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/babylonlabs-io/babylon/v4
|
Go |
< 4.1.0
|
4.1.0
|
References
Frequently Asked Questions
What is GHSA-2fcv-qww3-9v6h?
Which Github.com/babylonlabs io/babylon/v4 versions are affected?
What version fixes GHSA-2fcv-qww3-9v6h?
Is github.com/babylonlabs-io/babylon/v4 affected?
What CWE is associated with GHSA-2fcv-qww3-9v6h?
How can I check Go dependencies for GHSA-2fcv-qww3-9v6h?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-2fcv-qww3-9v6h",
"modified" : "2025-11-27T08:41:47Z",
"published" : "2025-11-24T23:32:11Z",
"aliases" : [ ],
"summary" : "Babylon's malformed vote extensions are not rejected",
"details" : "### Summary\n\nAdversarial validators can send large vote extensions by using non-existing protobuf tags. This will result in the rejection of the subsequent block proposal. Eventually, all block proposals will be rejected by all validators.\n\n### Impact\n\nA small group of adversarial validators can cause a chain halt.",
"severity" : [ {
"type" : "CVSS_V4",
"score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/babylonlabs-io/babylon/v4"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "4.1.0"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-2fcv-qww3-9v6h"
}, {
"type" : "WEB",
"url" : "https://github.com/babylonlabs-io/babylon/pull/1873/commits/86f38abd2dca5a656195a9954bb569a08d662e2b"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/babylonlabs-io/babylon"
}, {
"type" : "WEB",
"url" : "https://github.com/babylonlabs-io/babylon/releases/tag/v4.1.0"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-770" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2025-11-24T23:32:11Z",
"nvd_published_at" : null
}
}