# libxstream-java 1.4.15-2: libxstream-java 1.4.15-2 for Ubuntu 24.10 (oracular)

libxstream-java 1.4.15-2, released January 16, 2026, fixes 10 CVEs in libxstream-java. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-oracular-libxstream-java-1.4.15-2
- Platform: Linux
- Released: Jan 16, 2026
- Priority: Routine (Closes 10 CVEs, none high severity)
- CVEs: 10, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libxstream-java](https://patchblox.com/security/data/product/linux/libxstream-java.md) | Ubuntu 24.10 (oracular) | 1.4.15-2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-21351](https://patchblox.com/security/data/cve/CVE-2021-21351.md) | Routine | libxstream-java: XStream is a Java library to serialize objects to XML and back again | n/a | 0.8214 |  |
| [CVE-2021-21341](https://patchblox.com/security/data/cve/CVE-2021-21341.md) | Routine | libxstream-java: XStream is a Java library to serialize objects to XML and back again | n/a | 0.7780 |  |
| [CVE-2021-21344](https://patchblox.com/security/data/cve/CVE-2021-21344.md) | Routine | libxstream-java: XStream is a Java library to serialize objects to XML and back again | n/a | 0.7598 |  |
| [CVE-2021-21345](https://patchblox.com/security/data/cve/CVE-2021-21345.md) | Routine | libxstream-java: XStream is a Java library to serialize objects to XML and back again | n/a | 0.7232 |  |
| [CVE-2021-21342](https://patchblox.com/security/data/cve/CVE-2021-21342.md) | Routine | libxstream-java: XStream is a Java library to serialize objects to XML and back again | n/a | 0.4999 |  |
| [CVE-2021-21349](https://patchblox.com/security/data/cve/CVE-2021-21349.md) | Routine | libxstream-java: XStream is a Java library to serialize objects to XML and back again | n/a | 0.4683 |  |
| [CVE-2021-21343](https://patchblox.com/security/data/cve/CVE-2021-21343.md) | Routine | libxstream-java: XStream is a Java library to serialize objects to XML and back again | n/a | 0.4667 |  |
| [CVE-2021-21350](https://patchblox.com/security/data/cve/CVE-2021-21350.md) | Routine | libxstream-java: XStream is a Java library to serialize objects to XML and back again | n/a | 0.1523 |  |
| [CVE-2021-21347](https://patchblox.com/security/data/cve/CVE-2021-21347.md) | Routine | libxstream-java: XStream is a Java library to serialize objects to XML and back again | n/a | 0.1430 |  |
| [CVE-2021-21348](https://patchblox.com/security/data/cve/CVE-2021-21348.md) | Routine | libxstream-java: XStream is a Java library to serialize objects to XML and back again | n/a | 0.1383 |  |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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