JLSEC-2026-1265

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1265.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1265.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-1265

Upstream

CVE-2026-41992

EUVD-2026-40069

GHSA-qxh4-rprf-2mmj

Published

2026-08-12T16:09:57.324Z

Modified

2026-08-12T16:28:53.402013204Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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

GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by...

Details

GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompression formats within a single execution. GNU gzip maintains a global array that is shared across the LZ77, LZW, and LZH decompression routines and is not reinitialized between files processed in the same invocation. By decompressing a specially crafted LZW file followed by a specially crafted LZH file in a single gzip -d command, an attacker can poison the shared global state and subsequently trigger an out‑of‑bounds read in the LZH decoder. The LZH decompression logic follows stale values left in the shared array, causing reads past the end of the allocated global buffer.

This issue has been fixed in the commit 63dbf6b3b9e6e781df1a6a64e609b10e23969681

Database specific

{
    "sources": [
        {
            "imported": "2026-08-12T14:36:31.611Z",
            "id": "CVE-2026-41992",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-41992",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41992",
            "modified": "2026-07-01T14:02:20.173Z",
            "database_specific": {
                "status": "Analyzed"
            },
            "published": "2026-06-29T12:16:29.940Z"
        },
        {
            "id": "GHSA-qxh4-rprf-2mmj",
            "url": "https://api.github.com/advisories/GHSA-qxh4-rprf-2mmj",
            "html_url": "https://github.com/advisories/GHSA-qxh4-rprf-2mmj",
            "modified": "2026-07-01T15:34:56Z",
            "imported": "2026-08-12T14:36:34.832Z",
            "published": "2026-06-29T12:31:44Z"
        },
        {
            "id": "EUVD-2026-40069",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-40069",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-40069",
            "modified": "2026-06-29T13:30:43Z",
            "imported": "2026-08-12T14:36:33.138Z",
            "published": "2026-06-29T10:15:57Z"
        }
    ],
    "license": "CC-BY-4.0"
}

References

Affected packages

Julia / Gzip_jll

Package

Name: Gzip_jll
Purl: pkg:julia/Gzip_jll?uuid=be1be57a-8558-53c3-a7e5-50095f79957e

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1265.json"