Improper Validation Of User-Controlled Retry Header Value

Spring Kafka is vulnerable to improper validation of user-controlled retry header value. The vulnerability is due to insufficient validation of the retrytopic-attempts header, which allows an attacker to craft an out-of-range retry attempt count and cause the retry topic router to incorrectly...

CVE-2026-41727 In Spring for Apache Kafka, forged retry topic headers subvert retry routing and backoff behavior

Spring Kafka's retry topic infrastructure did not sufficiently validate user-controlled header values before acting on them. A producer could send a record with a crafted retrytopic-attempts header to supply an out-of-range attempt count and cause the retry topic router to misidentify where the...

PT-2026-48323

Name of the Vulnerable Software and Affected Versions Spring for Apache Kafka versions 4.0.0 through 4.0.5 Spring for Apache Kafka versions 3.3.0 through 3.3.15 Spring for Apache Kafka versions 3.2.0 through 3.2.13 Spring for Apache Kafka versions 2.9.0 through 2.9.13 Spring for Apache Kafka...

Important: nginx

Issue Overview: When the ngxmailauthhttpmodule module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate. This issue may occur when 1 CRAM-MD5 or APOP authentication is enabled, and 2 the authentication server permits retry by returning the...

CVE-2026-27651

When the ngxmailauthhttpmodule module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate. This issue may occur when 1 CRAM-MD5 or APOP authentication is enabled, and 2 the authentication server permits retry by returning the Auth-Wait...