CVE-2025-25500 — cosmwasm
HIGHCVE-2025-25500 is a high-severity (CVSS 7.5) CWE-284 vulnerability in cosmwasm. A fix is available for cosmwasm — see the affected versions and patch details below.
CosmWasm Allows Bypass of Capability Restrictions in Blockchains
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
Exploitation and automatability from CISA’s SSVC triage for CVE-2025-25500.
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
cosmwasmReal-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
An issue in CosmWasm prior to v2.2.0 allows attackers to bypass capability restrictions in blockchains by exploiting a lack of runtime capability validation. This allows attackers to deploy a contract without capability enforcement, and execute unauthorized actions on the blockchain.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | cosmwasm | all versions | 2.2.0cargo update -p cosmwasm --precise 2.2.0 |
Affected Products
cosmwasmcosmwasmDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for cosmwasm, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update cosmwasm to 2.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-25500 is resolved across your whole dependency graph.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.
Frequently Asked Questions
Is CVE-2025-25500 in your dependencies?
Find it across crates.io, including transitive dependencies.