CVE-2026-34783Published

Ferret is a declarative system for working with web data. Prior to 2.0.0-alpha.4, a path traversal vulnerability in Ferret's IO::FS::WRITE standard library function allows a malicious website to write arbitrary files to the filesystem of th…

Exact source revision recorded 25 Oct 2026 08:17:35 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

nvd · CVE-2026-34783

Published

Ferret is a declarative system for working with web data. Prior to 2.0.0-alpha.4, a path traversal vulnerability in Ferret's IO::FS::WRITE standard library function allows a malicious website to write arbitrary files to the filesystem of the machine running Ferret. When an operator scrapes a website that returns filenames containing ../ sequences, and uses those filenames to construct output paths (a standard scraping pattern), the attacker controls both the destination path and the file content. This can lead to remote code execution via cron jobs, SSH authorized_keys, shell profiles, or web shells. This vulnerability is fixed in 2.0.0-alpha.4.

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-22 · CWE-73

Original publisher date fields

published: 2026-04-06T17:17:10.430

lastModified: 2026-10-23T23:10:00.157

4 source CPE criteria · context only

cpe:2.3:a:montferret:ferret:*:*:*:*:*:go:*:*
cpe:2.3:a:montferret:ferret:2.0.0:alpha1:*:*:*:go:*:*
cpe:2.3:a:montferret:ferret:2.0.0:alpha2:*:*:*:go:*:*
cpe:2.3:a:montferret:ferret:2.0.0:alpha3:*:*:*:go:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 6 Apr 2026 17:17:10 UTC
Source modified: 23 Oct 2026 23:10:00 UTC
Observed here: 25 Oct 2026 08:17:35 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

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

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H