Quick answers
- Is CVE-2026-18359 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-18359 being exploited in the wild.
- How severe is CVE-2026-18359?
- High severity, with a CVSS score of 8.5, published 6 August 2026.
- Which products and versions are affected?
- Scripta eScriptorium through 26.04.1.
- Is there a fix for CVE-2026-18359?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-18359 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-18359?
- Check whether you run Escriptorium. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
This is a server-side request forgery (SSRF) vulnerability in the METS and IIIF import URI handling, accessible via the POST /api/documents/{pk}/imports/ endpoint. An authenticated attacker can control the mets_uri or iiif_uri parameters to force the server to issue HTTP requests to internal hosts. The vulnerability exists because the IMPORT_ALLOWED_DOMAINS setting defaults to '*' (allowing all domains), and no address filtering, redirect restrictions, or request timeouts are applied. An attacker can leverage this to enumerate internal network services, access cloud instance metadata endpoints, or exfiltrate sensitive data. Patches should implement strict domain whitelisting, block private IP ranges, and apply request timeouts.
Affected products
- Scripta eScriptorium through 26.04.1
Timeline
- 2026-08-06: disclosed