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CVE-2017-1000053

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-07-17 · updated 2026-06-17
Weakness: CWE-502

Description

Elixir Plug before v1.0.4, v1.1.7, v1.2.3 and v1.3.2 is vulnerable to arbitrary code execution in the deserialization functions of Plug.Session.

Affected products

Plug Project Plug: from 1.0.0 before 1.0.4; from 1.1.0 before 1.1.7; from 1.2.0 before 1.2.3; from 1.3.0 before 1.3.2 — fixed in 1.0.4, 1.1.7, 1.2.3, 1.3.2

How to fix

Upgrade to a fixed version: Plug Project Plug 1.0.4, 1.1.7, 1.2.3, 1.3.2. Check the vendor advisory for mitigations.

References

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