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 CNA under the Google root

CNA scorecard B 78/100 over 38 records in the last 180 days details

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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

Vulnerability timeline

Related by attack behaviour