RCE in X-stream Xstream
CVE-2020-26217
XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affec…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.932 (99.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H.
Affected products
- X-stream Xstream — versions < 1.4.14
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/x-stream/xstream/security/advisories/GHSA-mw36-7c6c-q4q2 (x_refsource_CONFIRM)
- x-stream.github.io/CVE-2020-26217.html (x_refsource_CONFIRM)
- github.com/x-stream/xstream/commit/0fec095d534126931c99fd38e9c6d41f5c685c1a (x_refsource_CONFIRM)
- [debian-lts-announce] 20201201 [SECURITY] [DLA 2471-1] libxstream-java security update (mailing-list, x_refsource_MLIST)
- DSA-4811 (vendor-advisory, x_refsource_DEBIAN)
- [activemq-issues] 20201230 [jira] [Created] (AMQ-8107) Does ActiveMQ use the affected functionality within Xstream libraries for CVE-2020-26217 (mailing-list, x_refsource_MLIST)
- [activemq-issues] 20201230 [jira] [Updated] (AMQ-8107) Does ActiveMQ use the affected functionality within Xstream libraries for CVE-2020-26217 (mailing-list, x_refsource_MLIST)
- [activemq-issues] 20210104 [jira] [Resolved] (AMQ-8107) Does ActiveMQ use the affected functionality within Xstream libraries for CVE-2020-26217 (mailing-list, x_refsource_MLIST)
- www.oracle.com/security-alerts/cpuApr2021.html (x_refsource_MISC)
- security.netapp.com/advisory/ntap-20210409-0004/ (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2020-26217?
- CVE-2020-26217 is a high-severity vulnerability in X-stream Xstream, classified under OS Command Injection. CVSS score: 8.0/10. Published 2020-11-16.
- How severe is CVE-2020-26217?
- High severity. CVSS v3 base score is 8.0 out of 10.
- Is CVE-2020-26217 known to be exploited?
- 30 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.