CVE-2020-2026: Kata Containers - Guests can trick the kata-runtime into mounting the container image on any host path
Vulnerability summary
CVE-2020-2026 is a high (CVSS 8.8) vulnerability in fedoraproject fedora. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 41% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 10-06-2020PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
A malicious guest compromised before a container creation (e.g. a malicious guest image or a guest running multiple containers) can trick the kata runtime into mounting the untrusted container filesystem on any host path, potentially allowing for code execution on the host. This issue affects: Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; Kata Containers 1.9 and earlier versions.
CVSS metrics
4 scores · 3 sources · 2 versions- CVE.orgCNA7.8HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HDiffers
- OSV · GoEcosystem advisory · calculated8.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
41%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.47% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Fedoraproject1 product
- fedoraEOL31
Github.com/kata-containers1 product
- runtime< 1.9.1 | ≥ 1.10.0, < 1.10.6 | ≥ 1.11.0, < 1.11.1
Kata containers1 product
- kata containers≥ 1.11, < 1.11.1 | ≥ 1.10, < 1.10.5 | ≥ 1, ≤ 1.9
Katacontainers1 product
- runtime≤ 1.9 | ≥ 1.10, < 1.10.5 | ≥ 1.11, < 1.11.1
4 vendors · 4 products
References
17 links- github.com/kata-containers/runtime/releases/tag/1.11.1X Refsource MISCWEBRelease NotesThird Party Advisory
- github.com/kata-containers/runtime/releases/tag/1.10.5X Refsource MISCWEBRelease NotesThird Party Advisory
