Summary
Deserialization of Untrusted Data in apache-submarine
Apache Software Foundation Apache Submarine has a bug when serializing against yaml. The bug is caused by snakeyaml https://nvd.nist.gov/vuln/detail/CVE-2022-1471 .
Apache Submarine uses JAXRS to define REST endpoints. In order to
handle YAML requests (using application/yaml content-type), it defines
a YamlEntityProvider entity provider that will process all incoming
YAML requests. In order to unmarshal the request, the readFrom method
is invoked, passing the entityStream containing the user-supplied data in submarine-server/server-core/src/main/java/org/apache/submarine/server/utils/YamlUtils.java.
We have now fixed this issue in the new version by replacing to jackson-dataformat-yaml.
This issue affects Apache Submarine: from 0.7.0 before 0.8.0. Users are recommended to upgrade to version 0.8.0, which fixes this issue.
If using the version smaller than 0.8.0 and not want to upgrade, you can try cherry-pick PR https://github.com/apache/submarine/pull/1054 and rebuild the submart-server image to fix this.
Impact
Untrusted serialized data is processed by a deserializer that can instantiate arbitrary objects or execute code as a side effect. Typical impact: arbitrary code execution or logic abuse.
CVE-2023-46302 has a CVSS score of 9.8 (Critical). The vector is network-reachable, no 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 (0.8.0); 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.
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Frequently Asked Questions
- What is CVE-2023-46302? CVE-2023-46302 is a critical-severity insecure deserialization vulnerability in apache-submarine (pip), affecting versions >= 0.7.0, < 0.8.0. It is fixed in 0.8.0. Untrusted serialized data is processed by a deserializer that can instantiate arbitrary objects or execute code as a side effect.
- How severe is CVE-2023-46302? CVE-2023-46302 has a CVSS score of 9.8 (Critical). 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 apache-submarine are affected by CVE-2023-46302? apache-submarine (pip) versions >= 0.7.0, < 0.8.0 is affected.
- Is there a fix for CVE-2023-46302? Yes. CVE-2023-46302 is fixed in 0.8.0. Upgrade to this version or later.
- Is CVE-2023-46302 exploitable, and should I be worried? Whether CVE-2023-46302 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-2023-46302 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-2023-46302? Upgrade
apache-submarineto 0.8.0 or later.