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CVE-2026-35397

Опубликовано: 05 мая 2026
Источник: nvd
CVSS3: 8.8
CVSS3: 7.1
EPSS Низкий

Описание

Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, a path traversal vulnerability in the REST API allows an authenticated user to escape the configured root_dir and access sibling directories whose names begin with the same prefix as the root_dir. For example, with a root_dir named "test", the API permits access to a sibling directory named "testtest" through a crafted request to the /api/contents endpoint using encoded path components. An attacker can read, write, and delete files in affected sibling directories. Multi-tenant deployments using predictable naming schemes are particularly at risk, as a user with a directory named "user1" could access directories for user10 through user19 and beyond. A user who can choose a single-character folder name could gain access to a significant number of sibling directories.

Version 2.18.0 contains a fix. As a workaround, ensure folder names do not share a common prefix with any sibling directory.

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:jupyter:jupyter_server:*:*:*:*:*:*:*:*
Версия до 2.18.0 (исключая)

EPSS

Процентиль: 45%
0.00583
Низкий

8.8 High

CVSS3

7.1 High

CVSS3

Дефекты

CWE-22
CWE-22

Связанные уязвимости

CVSS3: 8.8
ubuntu
3 месяца назад

Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, a path traversal vulnerability in the REST API allows an authenticated user to escape the configured root_dir and access sibling directories whose names begin with the same prefix as the root_dir. For example, with a root_dir named "test", the API permits access to a sibling directory named "testtest" through a crafted request to the /api/contents endpoint using encoded path components. An attacker can read, write, and delete files in affected sibling directories. Multi-tenant deployments using predictable naming schemes are particularly at risk, as a user with a directory named "user1" could access directories for user10 through user19 and beyond. A user who can choose a single-character folder name could gain access to a significant number of sibling directories. Version 2.18.0 contains a fix. As a workaround, ensure folder names do not share a common prefix with any sibling directory.

CVSS3: 7.1
redhat
3 месяца назад

Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, a path traversal vulnerability in the REST API allows an authenticated user to escape the configured root_dir and access sibling directories whose names begin with the same prefix as the root_dir. For example, with a root_dir named "test", the API permits access to a sibling directory named "testtest" through a crafted request to the /api/contents endpoint using encoded path components. An attacker can read, write, and delete files in affected sibling directories. Multi-tenant deployments using predictable naming schemes are particularly at risk, as a user with a directory named "user1" could access directories for user10 through user19 and beyond. A user who can choose a single-character folder name could gain access to a significant number of sibling directories. Version 2.18.0 contains a fix. As a workaround, ensure folder names do not share a common prefix with any sibling directory.

CVSS3: 8.8
debian
3 месяца назад

Jupyter Server is the backend for Jupyter web applications. In version ...

CVSS3: 7.1
github
3 месяца назад

Jupyter Server: Path Traversal via incorrect startswith() root directory check allows access to sibling directories

EPSS

Процентиль: 45%
0.00583
Низкий

8.8 High

CVSS3

7.1 High

CVSS3

Дефекты

CWE-22
CWE-22