Vulnerability-Lookup

(GHSA-FGHV-69VJ-QJ49)

Vulnerability from cleanstart – Published: 2026-09-18 10:32 – Updated: 2026-10-08 18:35 – Source website

Summary

Security fix for ghsa-fghv-69vj-qj49 applied in: cloudwatch-exporter 0.16.0-r0, incubator-kie-kogito-data-index-ephemeral 10.1.0-r1, kafka-ui 1.2.0-r1, kafka-ui 1.3.0-r1, keycloak 26.1.4-r1, keycloak 26.2.12-r0, kogito-apps 10.1.0-r0, kserve-modelmesh 0.12.0-r16, management-api-for-apache-cassandra-5.0 0.1.107-r0, management-api-for-apache-cassandra-5.0 0.1.108-r0, management-api-for-apache-cassandra-5.0 0.1.109-r0, stargate 1.0.90-r4, stargate 2.0.44-r4

Details

ghsa-fghv-69vj-qj49 affects multiple packages. This issue is resolved in later releases. See references for individual vulnerability details.

Severity

7.5 (High)


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

2.9 (Low)


                    
                      CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/ghsa-fghv-69vj-qj49	WEB

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "cloudwatch-exporter",
        "purl": "pkg:apk/cleanstart/cloudwatch-exporter"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.16.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "incubator-kie-kogito-data-index-ephemeral",
        "purl": "pkg:apk/cleanstart/incubator-kie-kogito-data-index-ephemeral"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.1.0-r1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "kafka-ui",
        "purl": "pkg:apk/cleanstart/kafka-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.0-r1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "kafka-ui",
        "purl": "pkg:apk/cleanstart/kafka-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.0-r1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "keycloak",
        "purl": "pkg:apk/cleanstart/keycloak?arch=noarch"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "26.1.4-r1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "keycloak",
        "purl": "pkg:apk/cleanstart/keycloak?arch=noarch"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "26.2.12-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "kogito-apps",
        "purl": "pkg:apk/cleanstart/kogito-apps?arch=noarch"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.1.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "kserve-modelmesh",
        "purl": "pkg:apk/cleanstart/kserve-modelmesh"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.12.0-r16"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "management-api-for-apache-cassandra-5.0",
        "purl": "pkg:apk/cleanstart/management-api-for-apache-cassandra-5.0"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1.107-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "management-api-for-apache-cassandra-5.0",
        "purl": "pkg:apk/cleanstart/management-api-for-apache-cassandra-5.0"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1.108-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "management-api-for-apache-cassandra-5.0",
        "purl": "pkg:apk/cleanstart/management-api-for-apache-cassandra-5.0"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1.109-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "stargate",
        "purl": "pkg:apk/cleanstart/stargate"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.90-r4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "stargate",
        "purl": "pkg:apk/cleanstart/stargate"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.44-r4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [],
  "database_specific": {},
  "details": "ghsa-fghv-69vj-qj49 affects multiple packages. This issue is resolved in later releases. See references for individual vulnerability details.",
  "id": "CLEANSTART-2026-DA27362",
  "modified": "2026-10-08T18:35:15Z",
  "published": "2026-09-18T10:32:39.053001Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-DA27362.json"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/ghsa-fghv-69vj-qj49"
    }
  ],
  "related": [],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Security fix for ghsa-fghv-69vj-qj49 applied in: cloudwatch-exporter 0.16.0-r0, incubator-kie-kogito-data-index-ephemeral 10.1.0-r1, kafka-ui 1.2.0-r1, kafka-ui 1.3.0-r1, keycloak 26.1.4-r1, keycloak 26.2.12-r0, kogito-apps 10.1.0-r0, kserve-modelmesh 0.12.0-r16, management-api-for-apache-cassandra-5.0 0.1.107-r0, management-api-for-apache-cassandra-5.0 0.1.108-r0, management-api-for-apache-cassandra-5.0 0.1.109-r0, stargate 1.0.90-r4, stargate 2.0.44-r4",
  "upstream": [
    "ghsa-fghv-69vj-qj49"
  ]
}

GHSA-FGHV-69VJ-QJ49

Vulnerability from github – Published: 2025-09-04 17:35 – Updated: 2025-09-10 20:48

Summary

Netty vulnerable to request smuggling due to incorrect parsing of chunk extensions

Details

Summary

A flaw in netty's parsing of chunk extensions in HTTP/1.1 messages with chunked encoding can lead to request smuggling issues with some reverse proxies.

Details

When encountering a newline character (LF) while parsing a chunk extension, netty interprets the newline as the end of the chunk-size line regardless of whether a preceding carriage return (CR) was found. This is in violation of the HTTP 1.1 standard which specifies that the chunk extension is terminated by a CRLF sequence (see the RFC).

This is by itself harmless, but consider an intermediary with a similar parsing flaw: while parsing a chunk extension, the intermediary interprets an LF without a preceding CR as simply part of the chunk extension (this is also in violation of the RFC, because whitespace characters are not allowed in chunk extensions). We can use this discrepancy to construct an HTTP request that the intermediary will interpret as one request but netty will interpret as two (all lines ending with CRLF, notice the LFs in the chunk extension):

POST /one HTTP/1.1
Host: localhost:8080
Transfer-Encoding: chunked

48;\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n0

POST /two HTTP/1.1
Host: localhost:8080
Transfer-Encoding: chunked

0

The intermediary will interpret this as a single request. Once forwarded to netty, netty will interpret it as two separate requests. This is a problem, because attackers can then the intermediary, as well as perform standard request smuggling attacks against other live users (see this Portswigger article).

Impact

This is a request smuggling issue which can be exploited for bypassing front-end access control rules as well as corrupting the responses served to other live clients.

The impact is high, but it only affects setups that use a front-end which: 1. Interprets LF characters (without preceding CR) in chunk extensions as part of the chunk extension. 2. Forwards chunk extensions without normalization.

Disclosure

This vulnerability was disclosed on June 18th, 2025 here: https://w4ke.info/2025/06/18/funky-chunks.html

Discussion

Discussion for this vulnerability can be found here: - https://github.com/netty/netty/issues/15522 - https://github.com/JLLeitschuh/unCVEed/issues/1

Credit

Credit to @JeppW for uncovering this vulnerability.
Credit to @JLLeitschuh at Socket for coordinating the vulnerability disclosure.

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.netty:netty-codec-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.125.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.netty:netty-codec-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2.0.Alpha1"
            },
            {
              "fixed": "4.2.5.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-58056"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-09-04T17:35:20Z",
    "nvd_published_at": "2025-09-03T21:15:33Z",
    "severity": "LOW"
  },
  "details": "## Summary\nA flaw in netty\u0027s parsing of chunk extensions in HTTP/1.1 messages with chunked encoding can lead to request smuggling issues with some reverse proxies.\n\n## Details\nWhen encountering a newline character (LF) while parsing a chunk extension, netty interprets the newline as the end of the chunk-size line regardless of whether a preceding carriage return (CR) was found. This is in violation of the HTTP 1.1 standard which specifies that the chunk extension is terminated by a CRLF sequence (see the [RFC](https://datatracker.ietf.org/doc/html/rfc9112#name-chunked-transfer-coding)).\n\nThis is by itself harmless, but consider an intermediary with a similar parsing flaw: while parsing a chunk extension, the intermediary interprets an LF without a preceding CR as simply part of the chunk extension (this is also in violation of the RFC, because whitespace characters are not allowed in chunk extensions). We can use this discrepancy to construct an HTTP request that the intermediary will interpret as one request but netty will interpret as two (all lines ending with CRLF, notice the LFs in the chunk extension):\n\n```\nPOST /one HTTP/1.1\nHost: localhost:8080\nTransfer-Encoding: chunked\n\n48;\\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\n0\n\nPOST /two HTTP/1.1\nHost: localhost:8080\nTransfer-Encoding: chunked\n\n0\n\n```\n\nThe intermediary will interpret this as a single request. Once forwarded to netty, netty will interpret it as two separate requests. This is a problem, because attackers can then the intermediary, as well as perform standard request smuggling attacks against other live users (see [this Portswigger article](https://portswigger.net/web-security/request-smuggling/exploiting)).\n\n## Impact\nThis is a request smuggling issue which can be exploited for bypassing front-end access control rules as well as corrupting the responses served to other live clients.\n\nThe impact is high, but it only affects setups that use a front-end which:\n1. Interprets LF characters (without preceding CR) in chunk extensions as part of the chunk extension.\n2. Forwards chunk extensions without normalization.\n\n## Disclosure\n\n - This vulnerability was disclosed on June 18th, 2025 here: https://w4ke.info/2025/06/18/funky-chunks.html\n\n## Discussion\nDiscussion for this vulnerability can be found here:\n - https://github.com/netty/netty/issues/15522\n - https://github.com/JLLeitschuh/unCVEed/issues/1\n\n## Credit\n\n - Credit to @JeppW for uncovering this vulnerability.\n - Credit to @JLLeitschuh at [Socket](https://socket.dev/) for coordinating the vulnerability disclosure.",
  "id": "GHSA-fghv-69vj-qj49",
  "modified": "2025-09-10T20:48:05Z",
  "published": "2025-09-04T17:35:20Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/security/advisories/GHSA-fghv-69vj-qj49"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-58056"
    },
    {
      "type": "WEB",
      "url": "https://github.com/JLLeitschuh/unCVEed/issues/1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/issues/15522"
    },
    {
      "type": "WEB",
      "url": "https://github.com/github/advisory-database/pull/6092"
    },
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/pull/15611"
    },
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/commit/edb55fd8e0a3bcbd85881e423464f585183d1284"
    },
    {
      "type": "WEB",
      "url": "https://datatracker.ietf.org/doc/html/rfc9112#name-chunked-transfer-coding"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/netty/netty"
    },
    {
      "type": "WEB",
      "url": "https://w4ke.info/2025/06/18/funky-chunks.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Netty vulnerable to request smuggling due to incorrect parsing of chunk extensions"
}

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.

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(GHSA-FGHV-69VJ-QJ49)

GHSA-FGHV-69VJ-QJ49

Summary

Details

Impact

Disclosure

Discussion

Credit

Tags

Sightings

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