CVE-2026-108597

MEDIUM 4.8

Cohere Python SDK 5.11.0 through 7.2.0 Path Traversal via SageMaker Tar Extraction

CVSS Score

4.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-22
Vendor	cohere-ai
Product	cohere-python
Published	Oct 10, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Affected Versions

cohere-ai / cohere-python

5.11.0 ≤ 7.2.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

hackmd.io: https://hackmd.io/@haind/cohere-python-sagemaker-s3-archive-path-traversal github.com: https://github.com/cohere-ai/cohere-python/blob/0eacfe77e1710322b355928574cfec18f6791c42/src/cohere/manually_maintained/cohere_aws/client.py#L101-L123 github.com: https://github.com/cohere-ai/cohere-python vulncheck.com: https://www.vulncheck.com/advisories/cohere-python-sdk-5.11.0-through-7.2.0-path-traversal-via-sagemaker-tar-extraction

Credits

HaiND from the Post and Telecommunication Institute of Technology