CVE-2020-8159

Publication date 12 May 2020

Last updated 12 November 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

There is a vulnerability in actionpack_page-caching gem < v1.2.1 that allows an attacker to write arbitrary files to a web server, potentially resulting in remote code execution if the attacker can write unescaped ERB to a view.

Status

Package Ubuntu Release Status
ruby-actionpack-page-caching 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Fixed in 1.1.0-1ubuntu0.1~esm1
19.10 eoan Ignored end of life
18.04 LTS bionic
Fixed in 1.0.2-4ubuntu0.18.04.1~esm1
16.04 LTS xenial
Fixed in 1.0.2-4ubuntu0.16.04.1~esm1
14.04 LTS trusty Not in release

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Severity score breakdown

CVSS version: CVSS v3.0

Base score 9.8 · Critical

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

References

Related Ubuntu Security Notices (USN)

    • USN-9058-1
    • Action Pack Page Caching vulnerability
    • 11 November 2026

Other references

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