GHSA-xhj4-g6w8-2xjw

go-zserio has Unbounded Memory Allocation for All Platforms

Published 24 Apr 2026Modified 24 Apr 2026

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

GHSA9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by GHSA.

Description

### 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).

Affected packages and fixed versions

Source	Package	Fixed in
go::GitHub Security Advisory Go	github.com/woven-planet/go-zserio	0.9.1

References

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