High severity8.6NVD Advisory· Published Aug 28, 2026
CVE-2026-82286
CVE-2026-82286
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
2(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=1.5.1
Patches
Vulnerability mechanics
References
4- github.com/BuilderIO/gpt-crawler/blob/d2245d66a5ad60bf227a55c849135394cbecc9b5/src/config.tsnvd
- github.com/BuilderIO/gpt-crawler/blob/d2245d66a5ad60bf227a55c849135394cbecc9b5/src/core.tsnvd
- github.com/BuilderIO/gpt-crawler/issues/418nvd
- www.vulncheck.com/advisories/gpt-crawler-arbitrary-file-write-via-outputfilename-parameternvd
News mentions
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