CVE-2026-44592

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Source
https://cve.org/CVERecord?id=CVE-2026-44592
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44592.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-44592
Aliases
  • GHSA-49w6-gf3p-96m2
Published
2026-05-14T18:39:59Z
Modified
2026-08-12T03:51:11Z
Severity
  • 9.4 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H CVSS Calculator
Summary
Gradient: Unauthenticated worker on /proto → arbitrary NAR write / cache poisoning
Details

Gradient is a nix-based continuous integration system. In 1.1.0, when GRADIENT_DISCOVERABLE=true (the default, and the NixOS module default), anyone who can reach /proto can register as a worker without any credentials by sending a fresh, never-registered worker UUID. The resulting session has PeerAuth::Open, i.e. it sees jobs from every organisation, and can immediately NarPush/NarUploaded arbitrary store paths into nar_storage and the cached_path table. This vulnerability is fixed in 1.1.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-306",
        "CWE-345",
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44592.json"
}
References

Affected packages

Git / github.com/wavelens/gradient

Affected ranges

Type
GIT
Repo
https://github.com/wavelens/gradient
Events
Introduced
9b2eba5662d96ab31b55f220220f780f8e761afa
Last Affected
9b2eba5662d96ab31b55f220220f780f8e761afa
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "1.1.0"
        },
        {
            "last_affected": "1.1.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

1.*
1.1.0
v1.*
v1.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44592.json"