CVE-2026-59320 Vulnerability Analysis & Exploit Details

CVE-2026-59320
Vulnerability Scoring

6.5
/10
High Risk

If left unpatched, CVE-2026-59320 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-59320 Details

Status: Analyzed

Last updated: 🕔 31 Aug 2026, 17:19 UTC
Originally published on: 🕗 27 Aug 2026, 20:17 UTC

Time between publication and last update: 3 days

CVSS Release: version 3

CVSS3 Source

security@vmware.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE-2026-59320 Vulnerability Summary

CVE-2026-59320: When a container-level ErrorHandler is configured (the mitigation for finding 221000), each delivery whose processing throws still permanently consumes one link credit. After initialCredits (default 100) failing messages the receiver's credit reaches zero and the broker stops delivering, leaving the listener silently stalled while isRunning() remains true. Spring AMQP 4.1.0

Assessing the Risk of CVE-2026-59320

Access Complexity Graph

The exploitability of CVE-2026-59320 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-59320

CVE-2026-59320 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-59320, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-59320, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2026-59320 has no significant impact on data confidentiality.
  • Integrity: None
    CVE-2026-59320 poses no threat to data integrity.
  • Availability: High
    CVE-2026-59320 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-59320 References

External References

CWE Common Weakness Enumeration

CWE-772

CAPEC Common Attack Pattern Enumeration and Classification

  • HTTP DoS CAPEC-469 An attacker performs flooding at the HTTP level to bring down only a particular web application rather than anything listening on a TCP/IP connection. This denial of service attack requires substantially fewer packets to be sent which makes DoS harder to detect. This is an equivalent of SYN flood in HTTP. The idea is to keep the HTTP session alive indefinitely and then repeat that hundreds of times. This attack targets resource depletion weaknesses in web server software. The web server will wait to attacker's responses on the initiated HTTP sessions while the connection threads are being exhausted.

Vulnerable Configurations

  • cpe:2.3:a:vmware:spring_advanced_message_queuing_protocol:4.1.0:-:*:*:*:*:*:*
    cpe:2.3:a:vmware:spring_advanced_message_queuing_protocol:4.1.0:-:*:*:*:*:*:*
  • cpe:2.3:a:vmware:spring_advanced_message_queuing_protocol:4.1.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:vmware:spring_advanced_message_queuing_protocol:4.1.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:vmware:spring_advanced_message_queuing_protocol:4.1.0:milestone1:*:*:*:*:*:*
    cpe:2.3:a:vmware:spring_advanced_message_queuing_protocol:4.1.0:milestone1:*:*:*:*:*:*
  • cpe:2.3:a:vmware:spring_advanced_message_queuing_protocol:4.1.0:milestone2:*:*:*:*:*:*
    cpe:2.3:a:vmware:spring_advanced_message_queuing_protocol:4.1.0:milestone2:*:*:*:*:*:*
  • cpe:2.3:a:vmware:spring_advanced_message_queuing_protocol:4.1.0:milestone3:*:*:*:*:*:*
    cpe:2.3:a:vmware:spring_advanced_message_queuing_protocol:4.1.0:milestone3:*:*:*:*:*:*

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