ALPINE-CVE-2026-40110
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-40110
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-40110.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-40110
- Upstream
- Published
- 2026-05-05T22:16:00Z
- Modified
- 2026-11-03T06:33:02Z
- Severity
-
- 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, the Origin header validation uses Python's re.match() to check incoming origins against the allow_origin_pat configuration value. Because re.match() only anchors at the start of the string and does not require a full match, a pattern intended to match only a trusted domain (e.g., trusted.example.com) will also match any origin that begins with that domain followed by additional characters (e.g., trusted.example.com.evil.com). An attacker who controls such a domain can bypass the CORS origin restriction and make cross-origin requests to the Jupyter Server API from an untrusted site. This issue has been fixed in version 2.18.0.
- References