JLSEC-2026-604

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-604.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-604.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-604

Upstream

CVE-2026-6477

Published

2026-06-08T13:54:13.679Z

Modified

2026-07-25T18:24:42.840268249Z

Severity

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

Summary

[none]

Details

Use of inherently dangerous function PQfn(..., result_is_int=0, ...) in PostgreSQL libpq lo_export(), lo_read(), lo_lseek64(), and lo_tell64() functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets(), PQfn(..., result_is_int=0, ...) stores arbitrary-length, server-determined data into a buffer of unspecified size. Because both the \lo_export command in psql and pg_dump call lo_read(), the server superuser can overwrite pg_dump or psql stack memory. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Database specific

{
    "sources": [
        {
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6477",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-6477",
            "modified": "2026-07-17T13:19:01.047Z",
            "published": "2026-05-14T14:16:25.347Z",
            "imported": "2026-07-17T22:13:52.369Z",
            "id": "CVE-2026-6477",
            "database_specific": {
                "status": "Modified"
            }
        }
    ],
    "license": "CC-BY-4.0"
}

References

Affected packages

Julia / LibPQ_jll

Package

Name: LibPQ_jll
Purl: pkg:julia/LibPQ_jll?uuid=08be9ffa-1c94-5ee5-a977-46a84ec9b350

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

16.14.0+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-604.json"