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CVE-2026-5422

Опубликовано: 02 июн. 2026
Источник: redhat
CVSS3: 6.8
EPSS Низкий

Описание

A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boundary check in the _get_os_path() function within jupyter_server/services/contents/fileio.py. The check uses startswith(root) without appending a trailing path separator, allowing sibling directories with names starting with the same prefix as root_dir to bypass the check. Additionally, the to_os_path() function in utils.py does not strip ".." from path parts, enabling traversal sequences to bypass the vulnerable check. This vulnerability can lead to unauthorized read/write access to files in sibling directories, potentially exposing sensitive data in shared hosting environments.

A flaw was found in jupyter-server. This path traversal vulnerability exists due to insufficient validation of file paths, specifically an incorrect root directory boundary check and improper handling of directory traversal sequences. This allows a remote attacker with low privileges to bypass directory restrictions and gain unauthorized read and write access to files in sibling directories. This could lead to the exposure of sensitive data, particularly in shared hosting environments.

Отчет

This Moderate vulnerability in jupyter-server allows a remote, low-privileged attacker to bypass directory restrictions. An incorrect root directory boundary check and improper handling of traversal sequences enable unauthorized read and write access to files in sibling directories. This poses a risk of sensitive data exposure, particularly in Red Hat OpenShift AI deployments utilizing shared hosting environments.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Migration Toolkit for Applications 8mta/mta-solution-server-rhel9Affected
Red Hat OpenShift AI (RHOAI)rhoai/odh-th06-cpu-torch210-py312-rhel9Affected
Red Hat OpenShift AI (RHOAI)rhoai/odh-th06-cpu-torch291-py312-rhel9Not affected
Red Hat OpenShift AI (RHOAI)rhoai/odh-th06-cuda130-torch210-py312-rhel9Affected
Red Hat OpenShift AI (RHOAI)rhoai/odh-th06-cuda130-torch291-py312-rhel9Not affected
Red Hat OpenShift AI (RHOAI)rhoai/odh-th06-rocm64-torch291-py312-rhel9Affected
Red Hat OpenShift AI (RHOAI)rhoai/odh-workbench-jupyter-datascience-cpu-py312-rhel9Affected
Red Hat OpenShift AI (RHOAI)rhoai/odh-workbench-jupyter-minimal-cpu-py312-rhel9Affected
Red Hat OpenShift AI (RHOAI)rhoai/odh-workbench-jupyter-minimal-cuda-py312-rhel9Affected
Red Hat OpenShift AI (RHOAI)rhoai/odh-workbench-jupyter-minimal-rocm-py312-rhel9Affected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-22
https://bugzilla.redhat.com/show_bug.cgi?id=2484037jupyter-server: jupyter-server: Sensitive data exposure via path traversal vulnerability

EPSS

Процентиль: 35%
0.00437
Низкий

6.8 Medium

CVSS3

Связанные уязвимости

CVSS3: 8.1
ubuntu
2 месяца назад

A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boundary check in the _get_os_path() function within jupyter_server/services/contents/fileio.py. The check uses startswith(root) without appending a trailing path separator, allowing sibling directories with names starting with the same prefix as root_dir to bypass the check. Additionally, the to_os_path() function in utils.py does not strip ".." from path parts, enabling traversal sequences to bypass the vulnerable check. This vulnerability can lead to unauthorized read/write access to files in sibling directories, potentially exposing sensitive data in shared hosting environments.

CVSS3: 8.1
nvd
2 месяца назад

A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boundary check in the _get_os_path() function within jupyter_server/services/contents/fileio.py. The check uses startswith(root) without appending a trailing path separator, allowing sibling directories with names starting with the same prefix as root_dir to bypass the check. Additionally, the to_os_path() function in utils.py does not strip ".." from path parts, enabling traversal sequences to bypass the vulnerable check. This vulnerability can lead to unauthorized read/write access to files in sibling directories, potentially exposing sensitive data in shared hosting environments.

CVSS3: 8.1
debian
2 месяца назад

A path traversal vulnerability exists in jupyter-server version 2.17.0 ...

CVSS3: 6.8
github
2 месяца назад

A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boundary check in the _get_os_path() function within jupyter_server/services/contents/fileio.py. The check uses startswith(root) without appending a trailing path separator, allowing sibling directories with names starting with the same prefix as root_dir to bypass the check. Additionally, the to_os_path() function in utils.py does not strip ".." from path parts, enabling traversal sequences to bypass the vulnerable check. This vulnerability can lead to unauthorized read/write access to files in sibling directories, potentially exposing sensitive data in shared hosting environments.

EPSS

Процентиль: 35%
0.00437
Низкий

6.8 Medium

CVSS3