Summary
Workarounds
No known workarounds. Upgrade to the patched versions listed above.
Impact
The Volcano webhook server does not enforce a size limit on incoming HTTP request bodies. Any in-cluster pod that can reach the webhook endpoint may send an arbitrarily large request body, potentially causing the webhook server to be killed by OOM. All Volcano deployments with the webhook server exposed to in-cluster traffic are affected.
Crafted input forces the application to consume excessive CPU, memory, or other resources, degrading or denying service. Typical impact: denial of service.
CVE-2026-44247 has a CVSS score of 6.8 (Medium). The vector is reachable from an adjacent network, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.12.4, 1.13.3, 1.14.2); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
This issue will be fixed in the following versions:
- v1.14.2
- v1.13.3
- v1.12.4
Users running versions below these should upgrade accordingly.
Frequently Asked Questions
- What is CVE-2026-44247? CVE-2026-44247 is a medium-severity uncontrolled resource consumption vulnerability in volcano.sh/volcano (go), affecting versions < 1.12.4. It is fixed in 1.12.4, 1.13.3, 1.14.2. Crafted input forces the application to consume excessive CPU, memory, or other resources, degrading or denying service.
- How severe is CVE-2026-44247? CVE-2026-44247 has a CVSS score of 6.8 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of volcano.sh/volcano are affected by CVE-2026-44247? volcano.sh/volcano (go) versions < 1.12.4 is affected.
- Is there a fix for CVE-2026-44247? Yes. CVE-2026-44247 is fixed in 1.12.4, 1.13.3, 1.14.2. Upgrade to this version or later.
- Is CVE-2026-44247 exploitable, and should I be worried? Whether CVE-2026-44247 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2026-44247 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2026-44247?
- Upgrade
volcano.sh/volcanoto 1.12.4 or later - Upgrade
volcano.sh/volcanoto 1.13.3 or later - Upgrade
volcano.sh/volcanoto 1.14.2 or later
- Upgrade