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MEDIUM severity

CVE-2018-1103 — source-to-image

MEDIUMFix: openshift/source-to-image#870

CVE-2018-1103 is a medium-severity (CVSS 6.5) Path Traversal vulnerability in github.com/openshift/source-to-image. A fix is available for github.com/openshift/source-to-image — see the affected versions and patch details below.

Openshift Enterprise source-to-image vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip)

Also known asGHSA-w55j-f7vx-6q37GO-2020-0026
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs71th percentile — riskier than 71% of all scored CVEsHighest risk
0.00%0.61%1.23%1.84%0.2%1.3%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐹github.com/openshift/source-to-image

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Openshift Enterprise source-to-image before version 1.1.10 is vulnerable to an improper validation of user input. An attacker who could trick a user into using the command to copy files locally, from a pod, could override files outside of the target directory of the command.

Specific Go Packages Affected

github.com/openshift/source-to-image/pkg/tar

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/openshift/source-to-imageall versions1.1.10-0.20180427153919-f5cbcbc5cc6fgo get github.com/openshift/source-to-image@v1.1.10-0.20180427153919-f5cbcbc5cc6f

Affected Products

1 product · 1 configurations
Application
source-to-imageredhat
< 1.1.10
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/openshift/source-to-image, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/openshift/source-to-image to 1.1.10-0.20180427153919-f5cbcbc5cc6f or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-1103 is resolved across your whole dependency graph.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

Openshift Enterprise source-to-image before version 1.1.10 is vulnerable to an improper validation of user input. An attacker who could trick a user into using the command to copy files locally, from a pod, could override files outside of the target directory of the command. ### Specific Go Packages Affected github.com/openshift/source-to-image/pkg/tar
O3 Security · Impact-Aware SCA

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CVE-2018-1103: source-to-image — Fix Available