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High, CVSS 8.3

Cosmos EVM Allows Partial Precompile State Writes

GHSA-mjfq-3qr2-6g84

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • Go github.com/cosmos/evm

    Affected
    >= 0.1.0, <= 0.1.0
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
8.3 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N · score source
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

Impact Setting lower EVM call gas allows users to partially execute precompiles and error at specific points in the precompile code without reverting the partially written state. If executed on the distribution precompile when claiming funds, it could cause funds to be transferred to a user without resetting the claimable rewards to 0. The vulnerability could also be used to cause indeterministic execution by failing at other points in the code, halting validators. Any evmOS or Cosmos EVM chain using precompiles is affected. Patches The vulnerability was patched by wrapping each precompile execution into an atomic function that reverts any partially committed state on error. - evmos/os patch file: https://drive.google.com/file/d/1LfC0WSrQOqwTOW3qfaE6t8Jqf1PLVtS/ For chains using a different file structure, you must manually apply the diff: In x/evm/statedb.go: Add the following function: In x/evm/statedb/journal.go: Replace the Revert function with the following: In…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-mjfq-3qr2-6g84

Agent brief

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# Patch Next advisory brief: GHSA-mjfq-3qr2-6g84

Advisory: Cosmos EVM Allows Partial Precompile State Writes
IDs: GHSA-mjfq-3qr2-6g84
Record: https://patchnext.com/advisories/ghsa-mjfq-3qr2-6g84 (revision 1, source checked 26 Oct 2026, 15:09 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/cosmos/evm: affected >= 0.1.0, <= 0.1.0

## Suggested inspection (read-only)
- Go github.com/cosmos/evm: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/cosmos/evm.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-mjfq-3qr2-6g84 (GitHub-reviewed advisory GHSA-mjfq-3qr2-6g84 lists affected ranges: Go github.com/cosmos/evm >=0.1.0 <=0.1.0)

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