calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.6.0, a Server-Side Request Forgery vulnerability in the background-image endpoint of calibre e-book reader's web view allows an attacker to perform blind GET requests to arbitrary URLs and exfiltrate information out from the ebook sandbox. Version 9.6.0 patches the issue.
History

Tue, 31 Mar 2026 03:00:00 +0000

Type Values Removed Values Added
First Time appeared Calibre-ebook
Calibre-ebook calibre
CPEs cpe:2.3:a:calibre-ebook:calibre:*:*:*:*:*:*:*:*
Vendors & Products Calibre-ebook
Calibre-ebook calibre
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}


Mon, 30 Mar 2026 07:15:00 +0000

Type Values Removed Values Added
First Time appeared Kovidgoyal
Kovidgoyal calibre
Vendors & Products Kovidgoyal
Kovidgoyal calibre

Fri, 27 Mar 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 27 Mar 2026 14:30:00 +0000

Type Values Removed Values Added
Description calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.6.0, a Server-Side Request Forgery vulnerability in the background-image endpoint of calibre e-book reader's web view allows an attacker to perform blind GET requests to arbitrary URLs and exfiltrate information out from the ebook sandbox. Version 9.6.0 patches the issue.
Title calibre has Server-Side Request Forgery in ebook viewer backend
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-03-27T13:52:06.860Z

Updated: 2026-03-27T19:58:43.747Z

Reserved: 2026-03-17T23:23:58.312Z

Link: CVE-2026-33205

cve-icon Vulnrichment

Updated: 2026-03-27T18:57:56.907Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-27T15:16:54.277

Modified: 2026-03-30T20:48:24.333

Link: CVE-2026-33205

cve-icon Redhat

No data.