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LOW severity

CosmWasm wasmd has large address count in ValidateBasicGHSA-m3rh-cvr5-x6q4

LOWFix: CosmWasm/wasmd@76c0c06

GHSA-m3rh-cvr5-x6q4 is a low-severity (CVSS 3.7) vulnerability in github.com/CosmWasm/wasmd. A fix is available for github.com/CosmWasm/wasmd — see the affected versions and patch details below.

Also known asGO-2024-3059
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Jul 6, 2026 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐹github.com/CosmWasm/wasmd

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

Component: wasmd Criticality: Low (ACMv1: I:Moderate; L:Unlikely) Patched versions: wasmd 0.52.0

In multiple wasmd message types it was possible to add a large number of addresses which might lead to unexpected resource consumption in ValidateBasic.

See CWA-2024-003 for more details.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/CosmWasm/wasmdall versions0.52.0go get github.com/CosmWasm/wasmd@v0.52.0

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/CosmWasm/wasmd, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/CosmWasm/wasmd to 0.52.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-m3rh-cvr5-x6q4 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.

Frequently Asked Questions

**Component:** wasmd **Criticality:** Low ([ACMv1](https://github.com/interchainio/security/blob/main/resources/CLASSIFICATION_MATRIX.md): I:Moderate; L:Unlikely) **Patched versions:** wasmd 0.52.0 In multiple wasmd message types it was possible to add a large number of addresses which might lead to unexpected resource consumption in ValidateBasic. See [CWA-2024-003](https://github.com/CosmWasm/advisories/blob/main/CWAs/CWA-2024-003.md) for more details.
O3 Security · Impact-Aware SCA

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CosmWasm wasmd has large address count in…