CVE-2021-21349 is a high-severity vulnerability in XStream, a Java library used for XML serialization, affecting versions prior to 1.4.16 and impacting products like Apache, Debian, and Oracle. This server-side request forgery (SSRF) flaw allows an unauthenticated remote attacker to access internal resources by manipulating the input stream, with a CVSS score of 8.6. While no active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB) has been observed, and community discussion is minimal, organizations are advised to update XStream to version 1.4.16 or implement a strict security framework whitelist to mitigate the risk.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* | ||
< 5.15.14CPE matchmatch criteria | cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* | ||
5.16.0CPE matchmatch criteria | cpe:2.3:a:apache:activemq:5.16.0:*:*:*:*:*:*:* | ||
5.16.1CPE matchmatch criteria | cpe:2.3:a:apache:activemq:5.16.1:*:*:*:*:*:*:* | ||
< 5.5CPE matchmatch criteria | cpe:2.3:a:apache:jmeter:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
A Server-Side Forgery Request can be activated unmarshalling with XStream to access data streams from an arbitrary URL referencing a resource in an intranet or the local host
Mar 22, 2021XStream: SSRF can be activated unmarshalling with XStream to access data streams from an arbitrary URL referencing a resource in an intranet or the local host
Mar 12, 2021