CRITICAL9.9

PYSEC-2026-306

Server-Side Request Forgery in calibreweb

Quick fix

PYSEC-2026-306 — calibreweb: upgrade to the fixed version with the command below.

pip install --upgrade 'calibreweb>=0.6.17'

Details

calibreweb prior to version 0.6.17 is vulnerable to server-side request forgery (SSRF). This is a result of incomplete SSRF protection that can be bypassed via an HTTP redirect. An HTTP server set up to respond with a 302 redirect may redirect a request to `localhost`.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/calibreweb

Introduced in: 0Fixed in: 0.6.17

Fixpip install --upgrade 'calibreweb>=0.6.17'

References

https://nvd.nist.gov/vuln/detail/CVE-2022-0767[ADVISORY]
https://github.com/janeczku/calibre-web/commit/965352c8d96c9eae7a6867ff76b0db137d04b0b8[WEB]
https://github.com/janeczku/calibre-web[PACKAGE]
https://huntr.dev/bounties/b26fc127-9b6a-4be7-a455-58aefbb62d9e[WEB]
https://pypi.org/project/calibreweb[PACKAGE]
https://github.com/advisories/GHSA-h65g-jfqg-2w6m[ADVISORY]