go-zserio has Unbounded Memory Allocation for All Platforms
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
- Denial of service
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-789.
Summary
### Impact When deserializing arrays, strings or bytes (blob) types zserio first reads the size of the variable, and then allocates sufficient memory to load data. Since the size is always trusted this can be abused by creating a data file with a large size value, causing the zserio runtime to allocate large amounts of memory. ### Patches Please apply [this commit](https://github.com/woven-by-toyota/go-zserio/commit/39ef1decde7e9766207794d396018776b33c6e45). ### Workarounds - Do not accept zserio data from non-trusted sources. - Use secure transportation protocols (like TLS).
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/woven-planet/go-zserio (Go) | before 0.9.1 | 0.9.1 | Patch available | GHSA-xhj4-g6w8-2xjw |
- github.com/woven-planet/go-zserio (Go) Vendor— Affected before 0.9.1 Fixed in 0.9.1 Patch available GHSA-xhj4-g6w8-2xjw
Remediation
- Fix · GHSA-xhj4-g6w8-2xjw github.com/woven-planet/go-zserio (Go) Fixed in 0.9.1 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-xhj4-g6w8-2xjw
References
Sources
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