What’s Vulnerable › Vulnerabilities

CVE-2026-41701: In Spring AMQP sequential correlation IDs enable reply poisoning on fixed reply queues

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-09 · updated 2026-10-01
• Weakness: CWE-330

Description

Correlation IDs for replies in the RabbitTemplate.sendAndReceive() with the fixed reply queue are predictable due to internal simple counter. Affected versions: Spring AMQP 4.0.0 through 4.0.3; 3.2.0 through 3.2.10; 3.1.0 through 3.1.15; 2.4.0 through 2.4.17.

Affected products

• Spring AMQP: before 2.4.18; from 3.1.0 before 3.1.16; from 3.2.0 before 3.2.10.1; from 4.0.0 before 4.0.3.1 — fixed in 2.4.18, 3.1.16, 3.2.10.1, 4.0.3.1
• Spring AMQP: from 4.0.0 before 4.0.3.1; from 3.2.0 before 3.2.10.1; from 3.1.0 before 3.1.16; from 2.4.0 before 2.4.18 — fixed in 4.0.3.1, 3.2.10.1, 3.1.16, 2.4.18

How to fix

Upgrade to a fixed version: Spring AMQP 2.4.18, 3.1.16, 3.2.10.1, 4.0.3.1; Spring AMQP 4.0.3.1, 3.2.10.1, 3.1.16, 2.4.18. Check the vendor advisory for mitigations.

References

• https://spring.io/security/cve-2026-41701

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