JLSEC-2026-462

Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-462.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-462.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-462
Upstream
Published
2026-05-07T15:03:46.925Z
Modified
2026-07-25T18:24:29.385018558Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 1.7 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.

Database specific
{
    "sources": [
        {
            "modified": "2026-06-17T10:39:32.747Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-34743",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34743",
            "published": "2026-04-02T19:21:33.187Z",
            "id": "CVE-2026-34743",
            "database_specific": {
                "status": "Analyzed"
            },
            "imported": "2026-07-17T21:56:37.321Z"
        }
    ],
    "license": "CC-BY-4.0"
}
References

Affected packages

Julia / XZ_jll

Package

Name
XZ_jll
Purl
pkg:julia/XZ_jll?uuid=ffd25f8a-64ca-5728-b0f7-c24cf3aae800

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.8.3+0

Database specific

source
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-462.json"