CVE-2020-26217

Public Exploit
Remote Code Execution in XStream

Description

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 affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.

Category

8.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 93.57% Top 5%
Vendor Advisory debian.org Vendor Advisory github.io
Affected: x-stream xstream
Published at:
Updated at:

References

Link Tags
https://github.com/x-stream/xstream/security/advisories/GHSA-mw36-7c6c-q4q2 third party advisory mitigation
https://x-stream.github.io/CVE-2020-26217.html exploit vendor advisory mitigation
https://github.com/x-stream/xstream/commit/0fec095d534126931c99fd38e9c6d41f5c685c1a patch third party advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00001.html third party advisory mailing list
https://www.debian.org/security/2020/dsa-4811 third party advisory vendor advisory
https://lists.apache.org/thread.html/redde3609b89b2a4ff18b536a06ef9a77deb93d47fda8ed28086fa8c3%40%3Cissues.activemq.apache.org%3E mailing list issue tracking
https://lists.apache.org/thread.html/r826a006fda71cc96fc87b6eca4b5d195f19a292ad36cea501682c38c%40%3Cissues.activemq.apache.org%3E mailing list issue tracking
https://lists.apache.org/thread.html/r2de526726e7f4db4a7cb91b7355070779f51a84fd985c6529c2f4e9e%40%3Cissues.activemq.apache.org%3E mailing list issue tracking
https://www.oracle.com/security-alerts/cpuApr2021.html patch third party advisory
https://security.netapp.com/advisory/ntap-20210409-0004/ third party advisory
https://www.oracle.com//security-alerts/cpujul2021.html patch third party advisory
https://lists.apache.org/thread.html/r7c9fc255edc0b9cd9567093d131f6d33fde4c662aaf912460ef630e9%40%3Ccommits.camel.apache.org%3E mailing list issue tracking
https://www.oracle.com/security-alerts/cpuoct2021.html patch third party advisory
https://www.oracle.com/security-alerts/cpujan2022.html third party advisory not applicable
https://www.oracle.com/security-alerts/cpuapr2022.html third party advisory not applicable

Frequently Asked Questions

What is the severity of CVE-2020-26217?
CVE-2020-26217 has been scored as a high severity vulnerability.
How to fix CVE-2020-26217?
To fix CVE-2020-26217, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-26217 being actively exploited in the wild?
It is possible that CVE-2020-26217 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~94% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-26217?
CVE-2020-26217 affects x-stream xstream.
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