CVE-2023-51747

Apache James prior to versions 3.8.1 and 3.7.5 is vulnerable to SMTP smuggling. A lenient behaviour in line delimiter handling might create a difference of interpretation between the sender and the receiver which can be exploited by an attacker to forge an SMTP envelop, allowing for instance to bypass SPF checks. The patch implies enforcement of CRLF as a line delimiter as part of the DATA transaction. We recommend James users to upgrade to non vulnerable versions.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:apache:james:3.7.5:*:*:*:*:*:*:*
cpe:2.3:a:apache:james:3.8.1:*:*:*:*:*:*:*

History

05 May 2025, 21:02

Type Values Removed Values Added
First Time Apache james
Apache
CPE cpe:2.3:a:apache:james:3.8.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:james:3.7.5:*:*:*:*:*:*:*
References () http://www.openwall.com/lists/oss-security/2024/02/27/4 - () http://www.openwall.com/lists/oss-security/2024/02/27/4 - Mailing List, Third Party Advisory
References () https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1fkllyk3krhgydko - () https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1fkllyk3krhgydko - Mailing List, Vendor Advisory
References () https://postfix.org/smtp-smuggling.html - () https://postfix.org/smtp-smuggling.html - Product
References () https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ - () https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ - Product

13 Feb 2025, 18:15

Type Values Removed Values Added
Summary (en) Apache James prior to versions 3.8.1 and 3.7.5 is vulnerable to SMTP smuggling. A lenient behaviour in line delimiter handling might create a difference of interpretation between the sender and the receiver which can be exploited by an attacker to forge an SMTP envelop, allowing for instance to bypass SPF checks. The patch implies enforcement of CRLF as a line delimiter as part of the DATA transaction. We recommend James users to upgrade to non vulnerable versions. (en) Apache James prior to versions 3.8.1 and 3.7.5 is vulnerable to SMTP smuggling. A lenient behaviour in line delimiter handling might create a difference of interpretation between the sender and the receiver which can be exploited by an attacker to forge an SMTP envelop, allowing for instance to bypass SPF checks. The patch implies enforcement of CRLF as a line delimiter as part of the DATA transaction. We recommend James users to upgrade to non vulnerable versions.

Information

Published : 2024-02-27 14:15

Updated : 2025-05-05 21:02


NVD link : CVE-2023-51747

Mitre link : CVE-2023-51747

CVE.ORG link : CVE-2023-51747


JSON object : View

Products Affected

apache

  • james
CWE
CWE-20

Improper Input Validation

CWE-290

Authentication Bypass by Spoofing

CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')