Vulnerability-Lookup

rustsec-2025-0037

Vulnerability from osv_rustsec

Published

2025-05-22 12:00

Modified

2025-10-28 06:02

Summary

Pingora Request Smuggling and Cache Poisoning

Details

Pingora versions prior to 0.5.0 which used the caching functionality in pingora-proxy did not properly drain the downstream request body on cache hits.

This allows an attacker to craft malicious HTTP/1.1 requests which could lead to request smuggling or cache poisoning.

This flaw was corrected in commit fda3317ec822678564d641e7cf1c9b77ee3759ff by ensuring that the downstream request body is always drained before a connection can be reused.

See the blog post for more information.

References

URL

Type

	https://crates.io/crates/pingora-core	PACKAGE
	https://rustsec.org/advisories/RUSTSEC-2025-0037.html	ADVISORY
	https://blog.cloudflare.com/resolving-a-request-s…	WEB

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "pingora-core",
        "purl": "pkg:cargo/pingora-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.5.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2025-4366",
    "GHSA-93c7-7xqw-w357"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Pingora versions prior to 0.5.0 which used the caching functionality in pingora-proxy did not properly drain the downstream request body on cache hits.\n\nThis allows an attacker to craft malicious HTTP/1.1 requests which could lead to request smuggling or cache poisoning.\n\nThis flaw was corrected in commit fda3317ec822678564d641e7cf1c9b77ee3759ff by ensuring that the downstream request body is always drained before a connection can be reused.\n\nSee [the blog post](https://blog.cloudflare.com/resolving-a-request-smuggling-vulnerability-in-pingora/) for more information.",
  "id": "RUSTSEC-2025-0037",
  "modified": "2025-10-28T06:02:18Z",
  "published": "2025-05-22T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/pingora-core"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0037.html"
    },
    {
      "type": "WEB",
      "url": "https://blog.cloudflare.com/resolving-a-request-smuggling-vulnerability-in-pingora/"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "Pingora Request Smuggling and Cache Poisoning"
}

CVE-2025-4366 (GCVE-0-2025-4366)

Vulnerability from cvelistv5 – Published: 2025-05-22 15:50 – Updated: 2025-06-18 13:46

Title

Request Smuggling Vulnerability in Pingora

Summary

A request smuggling vulnerability identified within Pingora’s proxying framework, pingora-proxy, allows malicious HTTP requests to be injected via manipulated request bodies on cache HITs, leading to unauthorized request execution and potential cache poisoning. Fixed in: https://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff https://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff Impact: The issue could lead to request smuggling in cases where Pingora’s proxying framework, pingora-proxy, is used for caching allowing an attacker to manipulate headers and URLs in subsequent requests made on the same HTTP/1.1 connection.

Severity

7.4 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-22 18:30 UTC

CWE

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

Assigner

cloudflare mitre root

References

1 reference

URL	Tags
https://github.com/cloudflare/pingora

Impacted products

1 product

Vendor	Product	Version
		Affected: 0 , < 0.5.0 (git)

Date Public

2025-05-22 15:11

Show details on NVD website

JSON

To clipboard

{
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            "privilegesRequired": "NONE",
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GHSA-93C7-7XQW-W357

Vulnerability from github – Published: 2025-06-20 18:07 – Updated: 2025-06-20 18:07

Summary

Pingora has a Request Smuggling Vulnerability

Details

Fixed in

https://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff

Impact

The issue could lead to request smuggling in cases where Pingora’s proxying framework, pingora-proxy, is used for caching allowing an attacker to manipulate headers and URLs in subsequent requests made on the same HTTP/1.1 connection.

Severity

7.4 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "pingora-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-4366"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-06-20T18:07:47Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "A request smuggling vulnerability identified within Pingora\u2019s proxying framework, pingora-proxy, allows malicious HTTP requests to be injected via manipulated request bodies on cache HITs, leading to unauthorized request execution and potential cache poisoning.\n\n### Fixed in\nhttps://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff \n\n### Impact\nThe issue could lead to request smuggling in cases where Pingora\u2019s proxying framework, pingora-proxy, is used for caching allowing an attacker to manipulate headers and URLs in subsequent requests made on the same HTTP/1.1 connection.",
  "id": "GHSA-93c7-7xqw-w357",
  "modified": "2025-06-20T18:07:47Z",
  "published": "2025-06-20T18:07:47Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cloudflare/pingora/security/advisories/GHSA-93c7-7xqw-w357"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4366"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff"
    },
    {
      "type": "WEB",
      "url": "https://blog.cloudflare.com/resolving-a-request-smuggling-vulnerability-in-pingora"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cloudflare/pingora"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0037.html"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Pingora has a Request Smuggling Vulnerability"
}

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.

Detection rules are retrieved from Rulezet.

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.

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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.

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rustsec-2025-0037

Vulnerability from osv_rustsec

CVE-2025-4366 (GCVE-0-2025-4366)

GHSA-93C7-7XQW-W357

Fixed in

Impact

Tags

Sightings

Nomenclature

Related by attack behaviour