gpt-crawler Arbitrary File Write via outputFileName Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · High · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-82286
- 2026-10-03 Alias added: GHSA-98j5-x6wm-v8hp
References
More QwikDev vulnerabilities
- TI-2023-01211 Code Injection in builderio/qwik CVSS 3.1CRITICAL 10.0
- TI-2025-33547 Crashing any Qwik Server CVSS 4.0CRITICAL 9.2
- TI-2023-02164 Cross-Site Request Forgery (CSRF) in builderio/qwik CVSS 3.1MEDIUM 6.5
- TI-2024-27738 Cross-site Scripting (XSS) vulnerability due to improper HTML escaping in qwik CVSS 3.1MEDIUM 6.3
- TI-2023-00388 Cross-site Scripting (XSS) - Generic in builderio/qwik CVSS 3.1MEDIUM 6.1
- TI-2026-62522 Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via builder.userAttributes CVSS 4.0MEDIUM 5.3
Sources
- CVE-2026-82286 · CVE Program
- CVE-2026-82286 · NVD
- FIRST EPSS
- GHSA-98j5-x6wm-v8hp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences