CVE-2026-108597CWE-22path-traversal

CVE-2026-108597

Medium · published October 10, 2026

CVSS v3.1
4.8
EPSS
0%
Percentile
20.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
CVSS v4.0
5.9 · 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
EPSS
0.00289 · 20.3th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-10-10T23:16Z
References (4)
https://github.com/cohere-ai/cohere-python · [email protected]https://github.com/cohere-ai/cohere-python/blob/0eacfe77e1710322b355928574cfec18f6791c42/src/cohere/manually_maintained/cohere_aws/client.py#L101-L123 · [email protected]https://hackmd.io/@haind/cohere-python-sagemaker-s3-archive-path-traversal · [email protected]https://www.vulncheck.com/advisories/cohere-python-sdk-5.11.0-through-7.2.0-path-traversal-via-sagemaker-tar-extraction · [email protected]
EPSS history
Timeline
  • 12 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 10 OCT 18:58Z
    Cohere Python SDK 5.11.0 through 7.2.0 Path Traversal via SageMaker Tar Extraction
    cvelistv5
  • 10 OCT 18:58Z
    Cohere Python SDK 5.11.0 through 7.2.0 Path Traversal via SageMaker Tar Extraction
    cvelistv5