CVE-2026-108597
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.
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 5.9 MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.29% probability · 21th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Source
- disclosure@vulncheck.com
EPSS moved from 0.3% on 11 October 2026 to 0.3% on 27 October 2026.
References
- https://github.com/cohere-ai/cohere-python
- https://github.com/cohere-ai/cohere-python/blob/0eacfe77e1710322b355928574cfec18f6791c42/src/cohere/manually_maintained/cohere_aws/client.py#L101-L123
- https://hackmd.io/@haind/cohere-python-sagemaker-s3-archive-path-traversal
- https://www.vulncheck.com/advisories/cohere-python-sdk-5.11.0-through-7.2.0-path-traversal-via-sagemaker-tar-extraction
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.