SSRF in Apache Struts
CVE-2020-26258
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.15, a Server-Side Forgery Request vulnerability can be activated when unmarshalling. The vulnerability may allow a remote attacker to reque…
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.822 (99.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Apache Struts
- X-stream Xstream — versions < 1.4.15
- Xstream
- Debian Debian_linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 33, 34, 35
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory, Mitigation)
- security-advisories@github.com (Mailing List, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Mailing List, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Mailing List, x_refsource_MISC)
- security-advisories@github.com (Mailing List, x_refsource_MISC)
- security-advisories@github.com (Mailing List, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Exploit, Third Party Advisory, x_refsource_MISC, Mitigation)
- af854a3a-2127-422b-91ae-364da2661108 (Issue Tracking, Mailing List)
Frequently asked questions
- What is CVE-2020-26258?
- CVE-2020-26258 is a medium-severity vulnerability in Apache Struts, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2020-12-16.
- How severe is CVE-2020-26258?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2020-26258 known to be exploited?
- 25 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.