CVE-2018-1002100: kubernetes Improper Input Validation
Vulnerability summary
CVE-2018-1002100 is a medium (CVSS 5.5) Improper Input Validation vulnerability in kubernetes. EPSS estimates a 1.67% chance of exploitation in the next 30 days, higher than 76.8% of scored vulnerabilities.
Not severe (CVSS 4.2, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 01-06-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.
CVSS metrics
6 scores · 5 sources · 2 versions- CVE.orgCNA4.2MediumCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- OSV · GoEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
1.67%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
Decrease -0.03 pp
From 1.70% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, administrative account, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- kubernetes< 1.17.4-1
K8s.io1 product
- kubernetes≥ 1.5.0-alpha.0, < 1.9.6 | ≥ 1.5.0, < 1.9.6
Kubernetes1 product
- kubernetesv1.5.x | v1.6.x | v1.7.x | v1.8.x | ≥ unspecified, < v1.9.6 | ≥ 1.5.0, ≤ 1.5.9 | ≥ 1.6.0, ≤ 1.6.14 | ≥ 1.7.0, ≤ 1.7.17 | ≥ 1.8.0, ≤ 1.8.15 | ≥ 1.9.0, ≤ 1.9.5
Ubuntu1 product
- kubernetesAll versions (No fix recorded)
4 vendors · 4 products