--- id: CVE-2021-21349 title: XStream is a Java library to serialize objects to XML and back again summary: >- XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to request data from internal resources that are not publicly available on… severity: medium cvss: 6.1 cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N' cwe: - CWE-502 - CWE-918 vendor: netapp product: oncommand_insight affected: - oncommand_insight - activemq < 5.15.14 - activemq = 5.16.0 - activemq = 5.16.1 - jmeter < 5.5 - xstream < 1.4.16 - debian_linux = 9.0 - debian_linux = 10.0 - debian_linux = 11.0 - fedora = 33 - fedora = 34 - fedora = 35 - banking_enterprise_default_management = 2.10.0 - banking_enterprise_default_management = 2.12.0 - banking_platform = 2.4.0 - banking_platform = 2.7.1 - banking_platform = 2.9.0 - banking_platform = 2.12.0 - banking_virtual_account_management = 14.2.0 - banking_virtual_account_management = 14.3.0 - banking_virtual_account_management = 14.5.0 - business_activity_monitoring = 11.1.1.9.0 - business_activity_monitoring = 12.2.1.3.0 - business_activity_monitoring = 12.2.1.4.0 - >- communications_billing_and_revenue_management_elastic_charging_engine = 12.0.0.3.0 - communications_policy_management = 12.5.0 - communications_unified_inventory_management = 7.3.2 - communications_unified_inventory_management = 7.3.4 - communications_unified_inventory_management = 7.3.5 - communications_unified_inventory_management = 7.4.0 - communications_unified_inventory_management = 7.4.1 - graalvm = 20.3.4 - graalvm = 21.3.0 - java_se = 7u321 - java_se = 8u311 - retail_xstore_point_of_service = 16.0.6 - retail_xstore_point_of_service = 17.0.4 - retail_xstore_point_of_service = 18.0.3 - retail_xstore_point_of_service = 19.0.2 - webcenter_portal = 11.1.1.9.0 - webcenter_portal = 12.2.1.3.0 - webcenter_portal = 12.2.1.4.0 patched: - activemq 5.15.14 - jmeter 5.5 - xstream 1.4.16 published: '2021-03-23' updated: '2026-10-07' sourceUpdated: '2026-10-07T19:17:24.667' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-21349' references: - url: 'http://x-stream.github.io/changes.html#1.4.16' label: security-advisories@github.com - url: >- https://github.com/x-stream/xstream/security/advisories/GHSA-f6hm-88x3-mfjv label: security-advisories@github.com - url: >- https://lists.apache.org/thread.html/r8244fd0831db894d5e89911ded9c72196d395a90ae655414d23ed0dd%40%3Cusers.activemq.apache.org%3E label: security-advisories@github.com - url: >- https://lists.apache.org/thread.html/r9ac71b047767205aa22e3a08cb33f3e0586de6b2fac48b425c6e16b0%40%3Cdev.jmeter.apache.org%3E label: security-advisories@github.com - url: 'https://lists.debian.org/debian-lts-announce/2021/04/msg00002.html' label: security-advisories@github.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP/ label: security-advisories@github.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7/ label: security-advisories@github.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB/ label: security-advisories@github.com - url: 'https://security.netapp.com/advisory/ntap-20210430-0002/' label: security-advisories@github.com - url: 'https://www.debian.org/security/2021/dsa-5004' label: security-advisories@github.com - url: 'https://www.oracle.com//security-alerts/cpujul2021.html' label: security-advisories@github.com - url: 'https://www.oracle.com/security-alerts/cpujan2022.html' label: security-advisories@github.com - url: 'https://www.oracle.com/security-alerts/cpuoct2021.html' label: security-advisories@github.com - url: 'https://x-stream.github.io/CVE-2021-21349.html' label: security-advisories@github.com - url: 'https://x-stream.github.io/security.html#workaround' label: security-advisories@github.com - url: 'http://x-stream.github.io/changes.html#1.4.16' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://github.com/x-stream/xstream/security/advisories/GHSA-f6hm-88x3-mfjv label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/r8244fd0831db894d5e89911ded9c72196d395a90ae655414d23ed0dd%40%3Cusers.activemq.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/r9ac71b047767205aa22e3a08cb33f3e0586de6b2fac48b425c6e16b0%40%3Cdev.jmeter.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://lists.debian.org/debian-lts-announce/2021/04/msg00002.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB/ label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://security.netapp.com/advisory/ntap-20210430-0002/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.debian.org/security/2021/dsa-5004' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com//security-alerts/cpujul2021.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpujan2022.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpuoct2021.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://x-stream.github.io/CVE-2021-21349.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://x-stream.github.io/security.html#workaround' label: af854a3a-2127-422b-91ae-364da2661108 tags: - nvd - cve.org - exploit-available ssvc: exploitation: none automatable: 'yes' technicalImpact: partial timestamp: '2026-10-07T18:45:30.622158Z' epss: 0.46826 epssPercentile: 0.98798 exploits: github: 1 githubRepos: - 'https://github.com/s-index/CVE-2021-21349' checkedAt: '2026-10-08T08:12:27.369Z' exploitAvailable: true ingestedAt: '2026-10-07T19:44:15.642Z' --- ## Overview XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16. ## Affected - `oncommand_insight` - `activemq < 5.15.14` - `activemq = 5.16.0` - `activemq = 5.16.1` - `jmeter < 5.5` - `xstream < 1.4.16` - `debian_linux = 9.0` - `debian_linux = 10.0` - `debian_linux = 11.0` - `fedora = 33` - `fedora = 34` - `fedora = 35` - `banking_enterprise_default_management = 2.10.0` - `banking_enterprise_default_management = 2.12.0` - `banking_platform = 2.4.0` - `banking_platform = 2.7.1` - `banking_platform = 2.9.0` - `banking_platform = 2.12.0` - `banking_virtual_account_management = 14.2.0` - `banking_virtual_account_management = 14.3.0` - `banking_virtual_account_management = 14.5.0` - `business_activity_monitoring = 11.1.1.9.0` - `business_activity_monitoring = 12.2.1.3.0` - `business_activity_monitoring = 12.2.1.4.0` - `communications_billing_and_revenue_management_elastic_charging_engine = 12.0.0.3.0` - `communications_policy_management = 12.5.0` - `communications_unified_inventory_management = 7.3.2` - `communications_unified_inventory_management = 7.3.4` - `communications_unified_inventory_management = 7.3.5` - `communications_unified_inventory_management = 7.4.0` - `communications_unified_inventory_management = 7.4.1` - `graalvm = 20.3.4` - `graalvm = 21.3.0` - `java_se = 7u321` - `java_se = 8u311` - `retail_xstore_point_of_service = 16.0.6` - `retail_xstore_point_of_service = 17.0.4` - `retail_xstore_point_of_service = 18.0.3` - `retail_xstore_point_of_service = 19.0.2` - `webcenter_portal = 11.1.1.9.0` - `webcenter_portal = 12.2.1.3.0` - `webcenter_portal = 12.2.1.4.0` ## Remediation Upgrade past the affected range: - `activemq 5.15.14` - `jmeter 5.5` - `xstream 1.4.16`