Vulnerability-Lookup

CVE-2025-4600 (GCVE-0-2025-4600)

Vulnerability from cvelistv5 – Published: 2025-05-16 13:47 – Updated: 2025-09-08 09:48 Exclusively Hosted Service

Title

HTTP Request Smuggling in Google Cloud Classic Application Load Balancer due to Improper Chunked Encoding Validation

Summary

A request smuggling vulnerability existed in the Google Cloud Classic Application Load Balancer due to improper handling of chunked-encoded HTTP requests. This allowed attackers to craft requests that could be misinterpreted by backend servers. The issue was fixed by disallowing stray data after a chunk, and is no longer exploitable. No action is required as Classic Application Load Balancer service after 2025-04-26 is not vulnerable.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:L/SI:L/SA:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-16 14:54 UTC

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Assigner

Google Google root Scorecard

References

1 reference

URL	Tags
https://cloud.google.com/support/bulletins#gcp-2025-027

Impacted products

1 product

Vendor	Product	Version	CPE status
Google Cloud	Classic Application Load Balancer	Affected: 0	guessed

Credits

Jeppe Bonde Weikop

Show details on NVD website

JSON

To clipboard

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CNVD-2025-11250

Vulnerability from cnvd - Published: 2025-06-03

Title

Google Cloud Classic Application Load Balancer输入验证错误漏洞

Description

Google Cloud Classic Application Load Balancer是美国谷歌（Google）公司的一个传统应用负载均衡服务，用于在云环境中自动分配流量到后端服务实例。 Google Cloud Classic Application Load Balancer存在输入验证错误漏洞，该漏洞源于对分块编码HTTP请求处理不当，目前没有详细的漏洞细节提供。

Severity

高

Patch Name

Google Cloud Classic Application Load Balancer输入验证错误漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级程序修复该安全问题，详情见厂商官网： https://cloud.google.com/load-balancing?hl=zh_cn

Reference

https://cloud.google.com/support/bulletins#gcp-2025-027

Impacted products

Name
Google Cloud Classic Application Load Balancer

Show details on source website

JSON

To clipboard

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}

FKIE_CVE-2025-4600

Vulnerability from fkie_nvd - Published: 2025-05-16 14:15 - Updated: 2026-06-17 09:33

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

References

	URL	Tags
	cve-coordination@google.com	https://cloud.google.com/support/bulletins#gcp-2025-027	Vendor Advisory

Impacted products

	Vendor	Product	Version
	google	application_load_balancer	*

JSON

To clipboard

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          "vendor": "Google Cloud",
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      "value": "A request smuggling vulnerability existed in the Google Cloud Classic Application Load Balancer due to improper handling of chunked-encoded HTTP requests. This allowed attackers to craft requests that could be misinterpreted by backend servers. The issue was fixed by disallowing stray data after a chunk, and is no longer exploitable. No action is required as Classic Application Load Balancer service after 2025-04-26 is not vulnerable."
    },
    {
      "lang": "es",
      "value": "Exist\u00eda una vulnerabilidad de contrabando de solicitudes en Google Cloud Classic Application Load Balancer debido a la gesti\u00f3n incorrecta de solicitudes HTTP con codificaci\u00f3n fragmentada. Esto permit\u00eda a los atacantes manipular solicitudes que los servidores backend pod\u00edan malinterpretar. El problema se solucion\u00f3 deshabilitando los datos dispersos despu\u00e9s de un fragmento y ya no es explotable. No se requiere ninguna acci\u00f3n, ya que el servicio del balanceador de carga de aplicaciones cl\u00e1sico despu\u00e9s del 26/04/2025 no es vulnerable."
    }
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          "integrityImpact": "HIGH",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
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          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
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          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
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GHSA-CRQJ-898F-X3M2

Vulnerability from github – Published: 2025-05-16 15:31 – Updated: 2025-07-29 15:31

Details

Severity

7.5 (High)


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

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:L/SI:L/SA:L

Show details on source website

JSON

To clipboard

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    "github_reviewed": false,
    "github_reviewed_at": null,
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  },
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  "id": "GHSA-crqj-898f-x3m2",
  "modified": "2025-07-29T15:31:29Z",
  "published": "2025-05-16T15:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4600"
    },
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      "type": "WEB",
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      "type": "CVSS_V3"
    },
    {
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      "type": "CVSS_V4"
    }
  ]
}

VAR-202505-2435

Vulnerability from variot - Updated: 2025-09-28 03:26

Show details on source website

JSON

To clipboard

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WID-SEC-W-2025-1081

Vulnerability from csaf_certbund - Published: 2025-05-15 22:00 - Updated: 2025-05-18 22:00

Summary

Google Cloud Platform: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Severity

Hoch

Scope

1 vulnerability in this advisory, including CVE-2025-4600.

CVE-2025-4600

Known affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2025-4600 (GCVE-0-2025-4600)

CNVD-2025-11250

FKIE_CVE-2025-4600

GHSA-CRQJ-898F-X3M2

VAR-202505-2435

WID-SEC-W-2025-1081

Tags

Sightings

Nomenclature

Related by attack behaviour