SSRF in Escriptorium
CVE-2026-18359
Server-side request forgery in the METS and IIIF import URI handling in Scripta eScriptorium through 26.04.1 allows a remote authenticated user to make the server issue arbitrary HTTP requests to internal hosts, including the cloud instance metadata service, via the mets_uri or iiif_uri parameter of POST /api/documents/{pk}/imports/, because the IMPORT_ALLOWED_DOMAINS setting defaults to '*' and no address filtering, redirect cap or timeout is applied
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (29.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Escriptorium
- Scripta Escriptorium — versions 0
Weakness classification (CWE)
References
- gitlab.com/scripta/escriptorium/-/work_items/1230 (Permissions Required)
Frequently asked questions
- What is CVE-2026-18359?
- CVE-2026-18359 is a high-severity vulnerability in Escriptorium, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2026-08-06.
- How severe is CVE-2026-18359?
- High severity. CVSS v3 base score is 8.5 out of 10.