How severe is GHSA-79xg-q4qm-7v9w?

No CVSS score has been assigned to GHSA-79xg-q4qm-7v9w yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-79xg-q4qm-7v9w?

GHSA-79xg-q4qm-7v9w affects the following packages: github.com/CosmWasm/wasmd (Go), github.com/CosmWasm/wasmd (Go), github.com/CosmWasm/wasmd (Go), github.com/CosmWasm/wasmd (Go). Ecosystems affected: Go.

How do I fix GHSA-79xg-q4qm-7v9w?

Update github.com/CosmWasm/wasmd to 0.60.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-79xg-q4qm-7v9w is resolved across your whole dependency graph.

How do I detect GHSA-79xg-q4qm-7v9w in my Go dependencies?

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.

How do I mitigate GHSA-79xg-q4qm-7v9w 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-79xg-q4qm-7v9w actively exploited in the wild?

No public exploit code has been indexed for GHSA-79xg-q4qm-7v9w 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-79xg-q4qm-7v9w published, and has it been updated?

GHSA-79xg-q4qm-7v9w was published on June 11, 2025 and was last updated on June 12, 2025. 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

CWA-2025-006: wasmd's improper error handling may lead to IBC channel opening despite errorGHSA-79xg-q4qm-7v9w

GHSA-79xg-q4qm-7v9w is a security 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-2025-3755

Published

Jun 11, 2025

Updated

Jun 12, 2025

Affected

4 pkgs

Patched

4 / 4

Exploits

None indexed

Exploitation data as of Jun 12, 2025 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

4 pkgs affected

🐹github.com/CosmWasm/wasmd🐹github.com/CosmWasm/wasmd🐹github.com/CosmWasm/wasmd🐹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

CWA-2025-006: Improper error handling may lead to IBC channel opening despite error

Severity

High (Considerable + Likely)¹

Affected versions:

wasmd 0.60.0
wasmd >= 0.51.0 < 0.55.1

Patched versions:

wasmd 0.60.1, 0.55.1, 0.54.1, 0.53.3

Description of the bug

A contract erroring during IBC channel opening does not prevent the channel from opening.

Applying the patch

The patch will be shipped in a wasmd release. You will also have to update libwasmvm if you build statically. If you already use the latest / close to latest wasmd, you can update more or less as follows:

Check the current wasmd version: go list -m github.com/CosmWasm/wasmd
Bump the github.com/CosmWasm/wasmd dependency in your go.mod to 0.60.1 (Cosmos SDK 0.53 compatible), 0.55.1 (Cosmos SDK 0.50 compatible), 0.54.1 or 0.53.3; go mod tidy; commit.
If you use the static libraries libwasmvm_muslc.aarch64.a/libwasmvm_muslc.x86_64.a, make sure that you use the same version as your wasmvm version.
Check the updated wasmd version: go list -m github.com/CosmWasm/wasmd and ensure you see 0.60.1, 0.55.1, 0.54.1 or 0.53.3.
Follow your regular practices to deploy chain upgrades.

The patch is consensus breaking.

Acknowledgement

This problem was discovered during an audit of the CosmWasm stack performed by Sherlock and funded by ICF/ICL in Q1 2025. Thank you for that work!

If you believe you have found a bug in the Interchain Stack or would like to contribute to the program by reporting a bug, please see https://hackerone.com/cosmos.

Timeline

2025-03-03: Auditor informs Confio about this issue.
2025-04-10: Confio developed the patch internally.
2025-06-05: Upcoming patch is announced.
2025-06-10: Patch is released.

Footnotes

following Amulet's Severity Classification Framework ACMv1.2: https://github.com/interchainio/security/blob/0295254e8645301ccb606d46108a45cede0a73e0/resources/CLASSIFICATION_MATRIX.md ↩

Affected Packages

4 total 4 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`github.com/CosmWasm/wasmd`	≥ 0.60.0&&< 0.60.1	0.60.1`go get github.com/CosmWasm/wasmd@v0.60.1`
🐹Go	`github.com/CosmWasm/wasmd`	≥ 0.55.0&&< 0.55.1	0.55.1`go get github.com/CosmWasm/wasmd@v0.55.1`
🐹Go	`github.com/CosmWasm/wasmd`	≥ 0.54.0&&< 0.54.1	0.54.1`go get github.com/CosmWasm/wasmd@v0.54.1`
🐹Go	`github.com/CosmWasm/wasmd`	≥ 0.51.0&&< 0.53.3	0.53.3`go get github.com/CosmWasm/wasmd@v0.53.3`

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/CosmWasm/wasmd, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/CosmWasm/wasmd to 0.60.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-79xg-q4qm-7v9w 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

# CWA-2025-006: Improper error handling may lead to IBC channel opening despite error **Severity** High (Considerable + Likely)[^1] **Affected versions:** - wasmd 0.60.0 - wasmd >= 0.51.0 < 0.55.1 **Patched versions:** - wasmd 0.60.1, 0.55.1, 0.54.1, 0.53.3 ## Description of the bug A contract erroring during IBC channel opening does not prevent the channel from opening. ## Applying the patch The patch will be shipped in a wasmd release. You will also have to update `libwasmvm` if you build statically. If you already use the latest / close to latest wasmd, you can update more or less

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