Unsafe reflection in scrapy - CVE-2026-105782
Published: April 23, 2026 / Updated: October 6, 2026
Vulnerability identifier: #VU127080
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-105782
CWE-ID: CWE-470
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to use of externally-controlled input to select classes or code in RefererMiddleware when processing a Referrer-Policy response header. A remote attacker can supply a crafted header value that imports and calls an arbitrary Python object to cause a denial of service.
The issue can be triggered by a malicious site through a response header on follow-up requests.
Affected software
scrapy
How to mitigate CVE-2026-105782
Install security update from vendor's website.
scrapy - update to 2.14.2