CVE-2026-108597

medium

Description

Cohere Python SDK 5.11.0 through 7.2.0 contains a path traversal (tar slip) vulnerability in _s3_models_dir_to_tarfile that allows arbitrary file write via unvalidated tarfile.extractall calls. Attackers who can write model archives to the victim's S3 prefix can include absolute paths or ../ members to overwrite files on the SDK host.

References

https://www.vulncheck.com/advisories/cohere-python-sdk-5.11.0-through-7.2.0-path-traversal-via-sagemaker-tar-extraction

https://hackmd.io/@haind/cohere-python-sagemaker-s3-archive-path-traversal

https://github.com/cohere-ai/cohere-python/blob/0eacfe77e1710322b355928574cfec18f6791c42/src/cohere/manually_maintained/cohere_aws/client.py#L101-L123

https://github.com/cohere-ai/cohere-python

Details

Source: Mitre, NVD

Published: 2026-10-10

Updated: 2026-10-10

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 4.8

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

Severity: Medium

CVSS v4

Base Score: 5.9

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: Medium