Is CVE-2023-46302 actively exploited?

No active exploitation of CVE-2023-46302 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-46302 be exploited remotely?

Yes. CVE-2023-46302 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-46302?

CVE-2023-46302 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-46302

CWE-502Published: November 20, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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.

NVD Source

Risk Analysis

Apache Submarine is vulnerable to remote code execution due to insecure YAML deserialization via the snakeyaml library. This allows an attacker to execute arbitrary code by sending a crafted YAML request to the REST endpoint.

No public exploit is known, and the vulnerability is not in the CISA KEV.

Recommended Action

Upgrade to Apache Submarine version 0.8.0 or later, which replaces the vulnerable library with jackson-dataformat-yaml.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-46302 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.