CVE-2026-42601
ArchiveBox is an open‑source web archiving system. In versions 0.8.6rc0 and earlier, the /add/ endpoint accepts a config JSON field that is merged into the crawl configuration without validation. This flaw lets attackers inject arbitrary tool arguments, enabling remote code execution.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
ArchiveBox versions 0.8.6rc0 and earlier (including 0.8.6).
Real-world impact
An attacker can inject malicious configuration into the crawl process, causing the system to run arbitrary commands on the host and effectively take control of the server.
Why this severity
The CVSS score of 9.3 reflects that the vulnerability is remotely exploitable without authentication, provides full system compromise, and has no mitigations in place.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- May 9, 2026 · May 9, 2026PublishedDisclosed and added to the National Vulnerability Database.
- Jul 24, 2026 · 11d agoAdvisory updatedThe NVD record was last revised.
How it’s attacked
References & advisories
- github.com/ArchiveBox/ArchiveBox/secur…exploitvendor advisory