What’s Vulnerable › Vulnerabilities

CVE-2017-9801

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-08-07 · updated 2026-06-17
• Weakness: CWE-20

Description

When a call-site passes a subject for an email that contains line-breaks in Apache Commons Email 1.0 through 1.4, the caller can add arbitrary SMTP headers.

Affected products

• Apache Software Foundation Apache Commons Email: 1.0, 1.1, 1.2, 1.3, 1.3.1, 1.3.2 (+2)

References

• http://www.securityfocus.com/bid/100082
• http://www.securitytracker.com/id/1039043
• https://lists.apache.org/thread.html/7ef903a772a2ff08605df1be819044fb15df2815eb3d63878b3fbbb5%40%3Cannounce.apache.org%3E
• http://www.securityfocus.com/bid/100082
• http://www.securitytracker.com/id/1039043
• https://lists.apache.org/thread.html/7ef903a772a2ff08605df1be819044fb15df2815eb3d63878b3fbbb5%40%3Cannounce.apache.org%3E

Get alerted when CVE-2017-9801 or the next vulnerability affects your stack