High severity7.5NVD Advisory· Published Feb 1, 2022· Updated Jun 17, 2026
CVE-2021-43859
CVE-2021-43859
Description
XStream is an open source java library to serialize objects to XML and back again. Versions prior to 1.4.19 may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. XStream 1.4.19 monitors and accumulates the time it takes to add elements to collections and throws an exception if a set threshold is exceeded. Users are advised to upgrade as soon as possible. Users unable to upgrade may set the NO_REFERENCE mode to prevent recursion. See GHSA-rmr5-cpv2-vgjf for further details on a workaround if an upgrade is not possible.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.thoughtworks.xstream:xstreamMaven | < 1.4.19 | 1.4.19 |
Affected products
26- cpe:2.3:a:oracle:commerce_guided_search:11.3.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:*:*:*:*:*:*:*:*range: <12.0.0.4.6
- cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:12.0.0.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.9.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_diameter_intelligence_hub:*:*:*:*:*:*:*:*Range: >=8.0.0,<=8.1.0
- cpe:2.3:a:oracle:communications_policy_management:12.6.0.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:flexcube_private_banking:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_xstore_point_of_service:16.0.6:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:a:oracle:retail_xstore_point_of_service:16.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_xstore_point_of_service:17.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_xstore_point_of_service:18.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_xstore_point_of_service:19.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:retail_xstore_point_of_service:20.0.1:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- osv-coords8 versionspkg:bitnami/jenkinspkg:maven/com.thoughtworks.xstream/xstreampkg:rpm/opensuse/xstream&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/xstream&distro=openSUSE%20Tumbleweedpkg:rpm/suse/xstream&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3pkg:rpm/suse/xstream&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP2pkg:rpm/suse/xstream&distro=SUSE%20Manager%20Server%20Module%204.1pkg:rpm/suse/xstream&distro=SUSE%20Manager%20Server%20Module%204.2
< 2.319.3+ 7 more
- (no CPE)range: < 2.319.3
- (no CPE)range: < 1.4.19
- (no CPE)range: < 1.4.19-3.18.2
- (no CPE)range: < 1.4.19-1.1
- (no CPE)range: < 1.4.19-3.18.2
- (no CPE)range: < 1.4.19-3.18.2
- (no CPE)range: < 1.4.19-3.18.2
- (no CPE)range: < 1.4.19-3.18.2
Patches
Vulnerability mechanics
References
16- github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846nvdPatchThird Party AdvisoryWEB
- www.oracle.com/security-alerts/cpuapr2022.htmlnvdPatchThird Party AdvisoryWEB
- www.oracle.com/security-alerts/cpujul2022.htmlnvdPatchThird Party AdvisoryWEB
- github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjfnvdExploitThird Party AdvisoryWEB
- x-stream.github.io/CVE-2021-43859.htmlnvdExploitVendor AdvisoryWEB
- www.openwall.com/lists/oss-security/2022/02/09/1nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-rmr5-cpv2-vgjfghsaADVISORY
- lists.debian.org/debian-lts-announce/2022/02/msg00018.htmlnvdMailing ListThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-43859ghsaADVISORY
- lists.debian.org/debian-lts-announce/2024/12/msg00023.htmlnvdWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VACQYG356OHUTD5WQGAQ4L2TTFTAV3SJghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VACQYG356OHUTD5WQGAQ4L2TTFTAV3SJ/nvdMailing List
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7XghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7X/nvdMailing List
- lists.fedoraproject.org/archives/list/[email protected]/message/VACQYG356OHUTD5WQGAQ4L2TTFTAV3SJghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7XghsaWEB
News mentions
1- Jenkins Security Advisory 2022-02-09Jenkins Security Advisories · Feb 9, 2022