Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-91771

Weights & Biases wandb before 0.29.0 Path Traversal via File Download

CVSS 3.1 8.8 HIGHCVSS 4.0 8.7 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-91771

Published

Weights & Biases wandb before 0.29.0 fails to validate the file name from server responses in the File.download function, allowing path traversal attacks. Attackers controlling the backend can supply file names with directory traversal sequences to write files outside the intended download directory, potentially enabling code execution through modification of shell startup files or Python import paths.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-91771

Published

wandb

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "wandb",
                    "product": "wandb",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:pypi/wandb",
                    "versions": [
                        {
                            "version": "0",
                            "lessThan": "0.29.0",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

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