CVE-2026-109156: SeldonIO MLServer environment_tarball env.py _extract_env path traversal

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-13 · updated 2026-10-16
Weakness: CWE-22

Description

A vulnerability has been found in SeldonIO MLServer up to 1.6.1. Affected is the function _extract_env of the file mlserver/env.py of the component environment_tarball Handler. Such manipulation leads to path traversal. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

SeldonIO MLServer: 1.6.0, 1.6.1

References

https://github.com/SeldonIO/MLServer/
https://github.com/SeldonIO/MLServer/issues/2553
https://vuldb.com/cve/CVE-2026-109156
https://vuldb.com/submit/978677
https://vuldb.com/vuln/416889
https://vuldb.com/vuln/416889/cti

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