CVE-2024-6535 is a medium-severity (CVSS 5.9) CWE-1392 vulnerability in github.com/skupperproject/skupper. A fix is available for github.com/skupperproject/skupper — see the affected versions and patch details below.
Skupper uses a static cookie secret for the openshift oauth-proxy
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2024-6535.
EPSS Exploitation Probability
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
github.com/skupperproject/skupperReal-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
A flaw was found in Skupper. When Skupper is initialized with the console-enabled and with console-auth set to Openshift, it configures the openshift oauth-proxy with a static cookie-secret. In certain circumstances, this may allow an attacker to bypass authentication to the Skupper console via a specially-crafted cookie.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/skupperproject/skupper | all versions | 0.0.0-20240703184342-c26bce4079ffgo get github.com/skupperproject/skupper@v0.0.0-20240703184342-c26bce4079ff |
Affected Products
service interconnectredhatDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/skupperproject/skupper, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/skupperproject/skupper to 0.0.0-20240703184342-c26bce4079ff or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-6535 is resolved across your whole dependency graph.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
| Product | Fixed in | Advisory |
|---|---|---|
| Service Interconnect 1.4 for RHEL 9 | service-interconnect/skupper-flow-collector-rhel9:1.4.7-1 | RHSA-2024:4865 |
| Service Interconnect 1 for RHEL 9 | service-interconnect/skupper-flow-collector-rhel9:1.5.5-1 | RHSA-2024:4871 |
Frequently Asked Questions
Is CVE-2024-6535 in your dependencies?
Find it across Go, including transitive dependencies.