CVE-2026-117556Published

zchunk before 1.5.5 Heap Out-of-Bounds Read via read_preface()

Exact source revision recorded 28 Oct 2026 17:46:48 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-117556

Published

zchunk

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "zchunk",
                    "product": "zchunk",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "1.5.5",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON