Medium severity5.3NVD Advisory· Published Mar 23, 2021· Updated Jun 17, 2026
CVE-2021-21350
CVE-2021-21350
Description
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 execute arbitrary code 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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.thoughtworks.xstream:xstreamMaven | < 1.4.16 | 1.4.16 |
Affected products
10- osv-coords9 versionspkg:bitnami/activemqpkg:maven/com.thoughtworks.xstream/xstreampkg:rpm/opensuse/xstream&distro=openSUSE%20Leap%2015.2pkg: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%20SP2pkg:rpm/suse/xstream&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3pkg:rpm/suse/xstream&distro=SUSE%20Manager%20Server%20Module%204.1pkg:rpm/suse/xstream&distro=SUSE%20Manager%20Server%20Module%204.2
< 5.15.14+ 8 more
- (no CPE)range: < 5.15.14
- (no CPE)range: < 1.4.16
- (no CPE)range: < 1.4.16-lp152.2.6.1
- (no CPE)range: < 1.4.16-3.8.1
- (no CPE)range: < 1.4.18-1.1
- (no CPE)range: < 1.4.16-3.8.1
- (no CPE)range: < 1.4.16-3.8.1
- (no CPE)range: < 1.4.16-3.8.1
- (no CPE)range: < 1.4.16-3.8.1
Patches
Vulnerability mechanics
References
23- www.oracle.com/security-alerts/cpujan2022.htmlnvdPatchVendor AdvisoryWEB
- x-stream.github.io/CVE-2021-21350.htmlnvdExploitThird Party AdvisoryWEB
- x-stream.github.io/changes.htmlnvdRelease NotesThird Party AdvisoryWEB
- github.com/advisories/GHSA-43gc-mjxg-gvrqghsaADVISORY
- github.com/x-stream/xstream/security/advisories/GHSA-43gc-mjxg-gvrqnvdThird Party AdvisoryWEB
- lists.apache.org/thread.html/r8244fd0831db894d5e89911ded9c72196d395a90ae655414d23ed0dd%40%3Cusers.activemq.apache.org%3EnvdIssue TrackingMailing ListThird Party Advisory
- lists.apache.org/thread.html/r9ac71b047767205aa22e3a08cb33f3e0586de6b2fac48b425c6e16b0%40%3Cdev.jmeter.apache.org%3EnvdIssue TrackingMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/04/msg00002.htmlnvdMailing ListThird Party AdvisoryWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB/nvdMailing ListThird Party Advisory
- nvd.nist.gov/vuln/detail/CVE-2021-21350ghsaADVISORY
- security.netapp.com/advisory/ntap-20210430-0002/nvdThird Party Advisory
- www.debian.org/security/2021/dsa-5004nvdMailing ListThird Party AdvisoryWEB
- www.oracle.com//security-alerts/cpujul2021.htmlnvdThird Party AdvisoryWEB
- www.oracle.com/security-alerts/cpuoct2021.htmlnvdThird Party AdvisoryWEB
- x-stream.github.io/security.htmlnvdMitigationThird Party AdvisoryWEB
- lists.apache.org/thread.html/r8244fd0831db894d5e89911ded9c72196d395a90ae655414d23ed0dd@%3Cusers.activemq.apache.org%3EghsaWEB
- lists.apache.org/thread.html/r9ac71b047767205aa22e3a08cb33f3e0586de6b2fac48b425c6e16b0@%3Cdev.jmeter.apache.org%3EghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHPghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7ghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREBghsaWEB
- security.netapp.com/advisory/ntap-20210430-0002ghsaWEB
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