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CVE-2020-2026

28
FAUCET Score

CVE-2020-2026 describes a critical vulnerability in Kata Containers, affecting versions 1.11 prior to 1.11.1, 1.10 prior to 1.10.5, and all 1.9 and earlier versions. A malicious guest, such as a compromised guest image or one running multiple containers, can exploit this flaw to trick the Kata runtime into mounting an untrusted container filesystem onto any host path. This could lead to remote code execution on the host system. The vulnerability carries a CVSS v3.1 score of 8.8 (HIGH), indicating a high-impact attack with low attack complexity and requiring low privileges, resulting in high confidentiality, integrity, and availability impacts. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.9CPE matchmatch criteria
cpe:2.3:a:katacontainers:runtime:*:*:*:*:*:*:*:*
>= 1.10, < 1.10.5CPE matchmatch criteria
cpe:2.3:a:katacontainers:runtime:*:*:*:*:*:*:*:*
>= 1.11, < 1.11.1CPE matchmatch criteria
cpe:2.3:a:katacontainers:runtime:*:*:*:*:*:*:*:*
31CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
>= 1.10, < 1.10.5CPE match
cpe:2.3:a:katacontainers:kata_containers:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.1
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
38.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 78th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

gopatch availablevia ghsa
Product: github.com/kata-containers/runtimeFixed in: 1.9.1
gopatch availablevia ghsa
Product: github.com/kata-containers/runtimeFixed in: 1.10.6
gopatch availablevia ghsa
Product: github.com/kata-containers/runtimeFixed in: 1.11.1

Vendor Advisories (1)

goGHSA-877x-32pm-p28xhigh

Link Following in Kata Runtime

Feb 15, 2022

References

github.com / kata-containers/runtime/issues/2712
Third Party Advisory
github.com / kata-containers/runtime/pull/2713
Third Party Advisory
github.com / kata-containers/runtime/releases/tag/1.10.5
Release NotesThird Party Advisory
github.com / kata-containers/runtime/releases/tag/1.11.1
Release NotesThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/2P7FHA4AF6Y6PAVJBTTQPUEHXZQUOF3P
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/6JPBKAQBF3OR72N55GWM2TDYQP2OHK6H
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/6W5MKF7HSAIL2AX2BX6RV4WWVGUIKVLS
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/NJAMOVB7DSOGX7J26QH5HZKU7GSSX2VU
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/QNJHSSPCKUGJDVXXIXK2JUWCRJDQX7CE
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/XWACJQSMY5BVDMVTF3FBN7HZSOSFOG3Q