Skip to content
OpenAdvisories
High · 8.6 Public exploit CVE-2026-82286 EUVD-2026-67817GHSA-98j5-x6wm-v8hp

gpt-crawler Arbitrary File Write via outputFileName Parameter

Published Aug 28, 2026 · Updated Sep 24, 2026 · Assigned by VulnCheck

Vendor: BuilderIO Product: gpt-crawler

Description

gpt-crawler through 1.5.1 fails to validate the outputFileName parameter in the POST /crawl endpoint, allowing unauthenticated attackers to write arbitrary files to any filesystem path. Attackers can supply absolute paths or parent-directory segments to overwrite existing files with content sourced from attacker-controlled URLs.

Affected products

VendorProductAffectedFixed
BuilderIO gpt-crawler ≤ 1.5.1 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References