GHSA-xhj4-g6w8-2xjw

Source

https://github.com/advisories/GHSA-xhj4-g6w8-2xjw

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-xhj4-g6w8-2xjw/GHSA-xhj4-g6w8-2xjw.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-xhj4-g6w8-2xjw

Aliases

GO-2026-5759

Published

2026-04-24T16:25:54Z

Modified

2026-06-25T23:11:47Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

go-zserio has Unbounded Memory Allocation for All Platforms

Details

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.

Workarounds

Do not accept zserio data from non-trusted sources.
Use secure transportation protocols (like TLS).

Database specific

{
    "cwe_ids":  [
        "CWE-789"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-04-24T16:25:54Z",
    "nvd_published_at":  null,
    "severity":  "CRITICAL"
}

References

Affected packages

Go / github.com/woven-planet/go-zserio

Package

Name: github.com/woven-planet/go-zserio; View open source insights on deps.dev
Purl: pkg:golang/github.com/woven-planet/go-zserio

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.9.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-xhj4-g6w8-2xjw/GHSA-xhj4-g6w8-2xjw.json"