CVE-2022-39354 is a medium-severity (CVSS 5.9) CWE-670 vulnerability in evm. A fix is available for evm — see the affected versions and patch details below.
Incorrect is_static parameter for custom stateful precompiles in SputnikVM (evm)
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2022-39354.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
evmReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.
Description
Impact
A custom stateful precompile can use the is_static parameter to determine if the call is executed in a static context (via STATICCALL), and thus decide if stateful operations should be done. Previously, the passed is_static parameter was incorrect -- it was only set to true if the call comes from a direct STATICCALL opcode. However, once a static call context is entered, it should stay static.
The issue only impacts custom precompiles that actually uses is_static. The maintainers estimate the usage is low. However, for those affected, it can lead to possible incorrect state transitions.
Patches
PR: https://github.com/rust-blockchain/evm/pull/133 Released in v0.36.0.
Older patch versions can be released on request if anyone needs them. Simply contact @sorpaas by email to request it.
For more information
If you have any questions or comments about this advisory:
- Open an issue in evm repo
- Email Wei at [email protected]
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | evm | all versions | 0.36.0cargo update -p evm --precise 0.36.0 |
Affected Products
evmevm_projectDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for evm, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update evm to 0.36.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-39354 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
Is CVE-2022-39354 in your dependencies?
Find it across crates.io, including transitive dependencies.