ALT-PU-2026-16664-4

BDU:2026-04347

HIGH7.8

Уязвимость функции extract pictures() программного обеспечения электронной библиотеки Calibre, связанная с неверным ограничением имени пути к каталогу с ограниченным доступом, позволяющая нарушителю обойти существующие механизмы безопасности и выполнить произвольный код

Опубликовано: 2026-03-31

CVSS 3.xВЫСОКАЯ 7.8

CVSS:3.x/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS 2.0ВЫСОКАЯ 7.2

CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C

Ссылки

BDU:2026-04348

HIGH7.8

Уязвимость программного обеспечения электронной библиотеки Calibre, связанная с неверным ограничением имени пути к каталогу с ограниченным доступом, позволяющая нарушителю выполнить произвольный код и вызвать отказ в обслуживании

Опубликовано: 2026-03-31

CVSS 3.xВЫСОКАЯ 7.8

CVSS:3.x/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS 2.0ВЫСОКАЯ 7.2

CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C

Ссылки

CVE-2026-25635

HIGH8.6

calibre is an e-book manager. Prior to 9.2.0, Calibre's CHM reader contains a path traversal vulnerability that allows arbitrary file writes anywhere the user has write permissions. On Windows (haven't tested on other OS's), this can lead to Remote Code Execution by writing a payload to the Startup folder, which executes on next login. This vulnerability is fixed in 9.2.0.

Опубликовано: 2026-02-06Изменено: 2026-06-17

CVSS 3.xВЫСОКАЯ 8.6

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Ссылки

CVE-2026-25636

HIGH7.8

calibre is an e-book manager. In 9.1.0 and earlier, a path traversal vulnerability in Calibre's EPUB conversion allows a malicious EPUB file to corrupt arbitrary existing files writable by the Calibre process. During conversion, Calibre resolves CipherReference URI from META-INF/encryption.xml to an absolute filesystem path and opens it in read-write mode, even when it points outside the conversion extraction directory. This vulnerability is fixed in 9.2.0.

Опубликовано: 2026-02-06Изменено: 2026-06-17

CVSS 3.xВЫСОКАЯ 7.8

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Ссылки

CVE-2026-25731

HIGH7.8

calibre is an e-book manager. Prior to 9.2.0, a Server-Side Template Injection (SSTI) vulnerability in Calibre's Templite templating engine allows arbitrary code execution when a user converts an ebook using a malicious custom template file via the --template-html or --template-html-index command-line options. This vulnerability is fixed in 9.2.0.

Опубликовано: 2026-02-06Изменено: 2026-06-17

CVSS 3.xВЫСОКАЯ 7.8

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Ссылки

CVE-2026-26064

CRITICAL9.3

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Versions 9.2.1 and below contain a Path Traversal vulnerability that allows arbitrary file writes anywhere the user has write permissions. On Windows, this leads to Remote Code Execution by writing a payload to the Startup folder, which executes on next login. Function extract_pictures only checks startswith('Pictures'), and does not sanitize '..' sequences. calibre's own ZipFile.extractall() in utils/zipfile.py does sanitize '..' via _get_targetpath(), but extract_pictures() bypasses this by using manual zf.read() + open(). This issue has been fixed in version 9.3.0.

Опубликовано: 2026-02-19Изменено: 2026-06-17

CVSS 3.xВЫСОКАЯ 8.8

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0КРИТИЧЕСКАЯ 9.3

CVSS:4.0/CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Ссылки

CVE-2026-26065

CRITICAL9.3

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Versions 9.2.1 and below are vulnerable to Path Traversal through PDB readers (both 132-byte and 202-byte header variants) that allow arbitrary file writes with arbitrary extension and arbitrary content anywhere the user has write permissions. Files are written in 'wb' mode, silently overwriting existing files. This can lead to potential code execution and Denial of Service through file corruption. This issue has been fixed in version 9.3.0.

Опубликовано: 2026-02-19Изменено: 2026-06-17

CVSS 3.xВЫСОКАЯ 8.8

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0КРИТИЧЕСКАЯ 9.3

CVSS:4.0/CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Ссылки

CVE-2026-27810

MEDIUM6.4

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.

Опубликовано: 2026-02-27Изменено: 2026-06-17

CVSS 3.xСРЕДНЯЯ 6.4

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Ссылки

https://github.com/kovidgoyal/calibre/security/advisories/GHSA-5fpj-fxw7-8grw

CVE-2026-27824

MEDIUM5.3

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, the calibre Content Server's brute-force protection mechanism uses a ban key derived from both `remote_addr` and the `X-Forwarded-For` header. Since the `X-Forwarded-For` header is read directly from the HTTP request without any validation or trusted-proxy configuration, an attacker can bypass IP-based bans by simply changing or adding this header, rendering the brute-force protection completely ineffective. This is particularly dangerous for calibre servers exposed to the internet, where brute-force protection is the primary defense against credential stuffing and password guessing attacks. Version 9.4.0 contains a fix for the issue.

Опубликовано: 2026-02-27Изменено: 2026-06-17

CVSS 3.xСРЕДНЯЯ 5.3

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Ссылки

https://github.com/kovidgoyal/calibre/security/advisories/GHSA-vhxc-r7v8-2xrw

CVE-2026-30853

HIGH8.2

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to 9.5.0, a path traversal vulnerability in the RocketBook (.rb) input plugin (src/calibre/ebooks/rb/reader.py) allows an attacker to write arbitrary files to any path writable by the calibre process when a user opens or converts a crafted .rb file. This is the same bug class fixed in CVE-2026-26065 for the PDB readers, but the fix was never applied to the RB reader. This vulnerability is fixed in 9.5.0.

Опубликовано: 2026-03-13Изменено: 2026-06-17

CVSS 3.xВЫСОКАЯ 8.2

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H

Ссылки

https://github.com/kovidgoyal/calibre/security/advisories/GHSA-7mp7-rfrg-542x

CVE-2026-33205

MEDIUM4.8

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.

Опубликовано: 2026-03-27Изменено: 2026-06-17

CVSS 3.xСРЕДНЯЯ 5.5

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS 4.0СРЕДНЯЯ 4.8

CVSS:4.0/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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Ссылки

https://github.com/kovidgoyal/calibre/security/advisories/GHSA-4926-v9px-wv7v

CVE-2026-33206

HIGH8.2

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.6.0, a path traversal vulnerability exists in Calibre' handling of images in Markdown and other similar text-based files allowing an attacker to include arbitrary files from the file system into the converted book. Additionally, missing authentication and server-side request forgery in the background-image endpoint in the ebook reader web view allow the files to be exfiltrated without additional interaction. Version 9.6.0 contains a fix.

Опубликовано: 2026-03-27Изменено: 2026-06-17

CVSS 3.xСРЕДНЯЯ 6.3

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

CVSS 4.0ВЫСОКАЯ 8.2

CVSS:4.0/CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Ссылки

Обновление пакета calibre в ветке sisyphus

Закрытые проблемы (12)