calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, an HTTP Response Header Injection vulnerability in the calibre Content Server allows any authenticated user to inject arbitrary HTTP headers into server responses via an unsanitized `content_disposition` query parameter in the `/get/` and `/data-files/get/` endpoints. All users running the calibre Content Server with authentication enabled are affected. The vulnerability is exploitable by any authenticated user and can also be triggered by tricking an authenticated victim into clicking a crafted link. Version 9.4.0 contains a fix for the issue.
Metrics
Affected Vendors & Products
References
History
Wed, 04 Mar 2026 16:45:00 +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 |
Mon, 02 Mar 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 02 Mar 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Kovidgoyal
Kovidgoyal calibre |
|
| Vendors & Products |
Kovidgoyal
Kovidgoyal calibre |
Fri, 27 Feb 2026 20:00:00 +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 9.4.0, an HTTP Response Header Injection vulnerability in the calibre Content Server allows any authenticated user to inject arbitrary HTTP headers into server responses via an unsanitized `content_disposition` query parameter in the `/get/` and `/data-files/get/` endpoints. All users running the calibre Content Server with authentication enabled are affected. The vulnerability is exploitable by any authenticated user and can also be triggered by tricking an authenticated victim into clicking a crafted link. Version 9.4.0 contains a fix for the issue. | |
| Title | calibre Vulnerable to HTTP Response Header Injection | |
| Weaknesses | CWE-113 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-02-27T19:44:39.106Z
Updated: 2026-03-02T12:53:36.368Z
Reserved: 2026-02-24T02:31:33.267Z
Link: CVE-2026-27810
Updated: 2026-03-02T12:53:32.292Z
Status : Analyzed
Published: 2026-02-27T20:21:39.780
Modified: 2026-03-04T16:40:42.740
Link: CVE-2026-27810
No data.