Execution-context crash via unbounded recursive JSON parsing
Published Jul 27, 2025 · Updated Jul 28, 2025
Uncontrolled recursion in CosmWasm serde-json-wasm before 0.5.2 and in 1.0.0 allows attackers to crash consumers via deeply nested JSON. The deserializer recursively visits nested sequences, maps, and struct variants without tracking depth, exhausting the stack before parsing completes. Reachability requires a consuming application to pass attacker-controlled JSON to the crate; the resulting stack overflow terminates the affected execution context.
Summary
What happened
Uncontrolled recursion in CosmWasm serde-json-wasm before 0.5.2 and in 1.0.0 allows attackers to crash consumers via deeply nested JSON. The deserializer recursively visits nested sequences, maps, and struct variants without tracking depth, exhausting the stack before parsing completes. Reachability requires a consuming application to pass attacker-controlled JSON to the crate; the resulting stack overflow terminates the affected execution context.
The record
- CVE
- CVE-2024-58264
- Published
- Jul 27, 2025
- Updated
- Jul 28, 2025
- Vendor
- CosmWasm
- Product
- serde-json-wasm
- Classifications
- CWE-674, CWE-787, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 27, 2025CVE publishedPublication date reported by the CVE source.
- Jul 28, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <0.5.2
- Affected versionversion=1.0.0 <1.0.1
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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