Cosmos packet-forward-middleware vulnerable to chain-halt
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
The Cosmos SDK is used for Inter-Blockchain Communication Protocol (IBC) applications and middleware. The [packet-forward-middleware](https://github.com/cosmos/ibc-apps/tree/main/middleware/packet-forward-middleware) module is an IBC middleware module built for Cosmos blockchains utilizing the IBC protocol allowing routing of incoming IBC packets from a source chain to a destination chain. The `packet-forward-middleware` module is vulnerable to potential chain-halt due to error non-determinism. ### Patches Please patch at your earliest convenience by applying one of the following patch versions, respective to the chain's ibc-go major version: v4.1.1 v5.2.1 v6.1.1
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | github.com/cosmos/ibc-apps/middleware/packet-forward-middleware/v4 (Go) | before 4.1.1 | 4.1.1 | Patch available | GHSA-w6rp-vxj2-fjhr |
| — | github.com/cosmos/ibc-apps/middleware/packet-forward-middleware/v5 (Go) | before 5.2.1 | 5.2.1 | Patch available | GHSA-w6rp-vxj2-fjhr |
| — | github.com/cosmos/ibc-apps/middleware/packet-forward-middleware/v6 (Go) | before 6.1.1 | 6.1.1 | Patch available | GHSA-w6rp-vxj2-fjhr |
- github.com/cosmos/ibc-apps/middleware/packet-forward-middleware/v4 (Go) Vendor— Affected before 4.1.1 Fixed in 4.1.1 Patch available GHSA-w6rp-vxj2-fjhr
- github.com/cosmos/ibc-apps/middleware/packet-forward-middleware/v5 (Go) Vendor— Affected before 5.2.1 Fixed in 5.2.1 Patch available GHSA-w6rp-vxj2-fjhr
- github.com/cosmos/ibc-apps/middleware/packet-forward-middleware/v6 (Go) Vendor— Affected before 6.1.1 Fixed in 6.1.1 Patch available GHSA-w6rp-vxj2-fjhr
Remediation
- Fix · GHSA-w6rp-vxj2-fjhr github.com/cosmos/ibc-apps/middleware/packet-forward-middleware/v4 (Go) Fixed in 4.1.1 Advisory →
- Fix · GHSA-w6rp-vxj2-fjhr github.com/cosmos/ibc-apps/middleware/packet-forward-middleware/v5 (Go) Fixed in 5.2.1 Advisory →
- Fix · GHSA-w6rp-vxj2-fjhr github.com/cosmos/ibc-apps/middleware/packet-forward-middleware/v6 (Go) Fixed in 6.1.1 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-w6rp-vxj2-fjhr
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences