Vulnerability-Lookup

GHSA-8PHW-XRJ9-CPQP

Vulnerability from github – Published: 2026-09-17 18:01 – Updated: 2026-09-17 18:01

Summary

Steeltoe.Management.Endpoint: HttpExchanges URI masking leaks query-string secrets

Details

Summary

Steeltoe's /actuator/httpexchanges endpoint records and displays request URIs after passing them through MaskedUri. The masking only covers the UserInfo portion of the URI (inline user:password@host credentials) and does not inspect the query string. With IncludeQueryString enabled by default, any secrets carried in query strings (for example: OAuth tokens, password-reset tokens, signed-URL signatures, API keys) are returned verbatim in the uri field of the response and written to logs at DEBUG level.

Impact

Any caller who can reach /actuator/httpexchanges can receive full request URIs from prior traffic, including any secrets those URIs contained in their query strings. Applications with DEBUG-level logging enabled for the Steeltoe.Management.Endpoint.Actuators.HttpExchanges namespace also write these URIs to their application logs.

Affected configuration

httpexchanges is explicitly added to the actuator exposure list (Management:Endpoints:Web:Exposure:Include). It is not included by default.
The application handles requests that carry secrets in query strings, such as OAuth callbacks, signed URLs, or password-reset links.
DEBUG logging is enabled for Steeltoe.Management.Endpoint.Actuators.HttpExchanges (log exposure only).

Mitigations

If an immediate upgrade is not possible:

Remove httpexchanges from the actuator exposure list, or restrict it behind authentication.
Set Management:Endpoints:HttpExchanges:IncludeQueryString to false to strip query strings from recorded exchanges entirely.

Severity

5.9 (Medium)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.2.0"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Steeltoe.Management.Endpoint"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-75523"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-17T18:01:30Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nSteeltoe\u0027s `/actuator/httpexchanges` endpoint records and displays request URIs after passing them through `MaskedUri`. The masking only covers the `UserInfo` portion of the URI (inline `user:password@host` credentials) and does not inspect the query string. With `IncludeQueryString` enabled by default, any secrets carried in query strings (for example: OAuth tokens, password-reset tokens, signed-URL signatures, API keys) are returned verbatim in the `uri` field of the response and written to logs at DEBUG level.\n\n## Impact\n\nAny caller who can reach `/actuator/httpexchanges` can receive full request URIs from prior traffic, including any secrets those URIs contained in their query strings. Applications with DEBUG-level logging enabled for the `Steeltoe.Management.Endpoint.Actuators.HttpExchanges` namespace also write these URIs to their application logs.\n\n## Affected configuration\n\n- `httpexchanges` is explicitly added to the actuator exposure list (`Management:Endpoints:Web:Exposure:Include`). It is not included by default.\n- The application handles requests that carry secrets in query strings, such as OAuth callbacks, signed URLs, or password-reset links.\n- DEBUG logging is enabled for `Steeltoe.Management.Endpoint.Actuators.HttpExchanges` (log exposure only).\n\n## Mitigations\n\nIf an immediate upgrade is not possible:\n\n- Remove `httpexchanges` from the actuator exposure list, or restrict it behind authentication.\n- Set `Management:Endpoints:HttpExchanges:IncludeQueryString` to `false` to strip query strings from recorded exchanges entirely.",
  "id": "GHSA-8phw-xrj9-cpqp",
  "modified": "2026-09-17T18:01:30Z",
  "published": "2026-09-17T18:01:30Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-8phw-xrj9-cpqp"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SteeltoeOSS/Steeltoe/commit/9bf0ecb9f2d4a34b65f61d41c5625d49071ae9fa"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SteeltoeOSS/Steeltoe/releases/tag/4.3.0"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/SteeltoeOSS/security-advisories"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Steeltoe.Management.Endpoint: HttpExchanges URI masking leaks query-string secrets"
}

CVE-2026-75523 (GCVE-0-2026-75523)

Vulnerability from cvelistv5 – Published: 2026-09-17 15:35 – Updated: 2026-09-17 17:23

Title

Steeltoe.Management.Endpoint: HttpExchanges URI masking leaks query-string secrets

Summary

Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. Prior to 4.3.0, the Steeltoe.Management.Endpoint /actuator/httpexchanges endpoint passes recorded request URIs through MaskedUri, which masks URI user information but does not inspect query strings. When Management:Endpoints:HttpExchanges:IncludeQueryString is enabled, the HttpExchangeRequest response can disclose OAuth tokens, password-reset tokens, signed-URL signatures, API keys, and other query-string secrets from prior traffic to a caller that can reach the explicitly exposed endpoint. The Steeltoe.Management.Endpoint.Actuators.HttpExchanges DEBUG logger also records these URIs, creating a second disclosure channel for users with log access. This issue is fixed in version 4.3.0.

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-17 17:23 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/SteeltoeOSS/security-advisorie…	x_refsource_CONFIRM
https://github.com/SteeltoeOSS/Steeltoe/commit/9b…	x_refsource_MISC
https://github.com/SteeltoeOSS/Steeltoe/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
SteeltoeOSS	security-advisories	Affected: < 4.3.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-75523",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-17T17:23:43.488927Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2026-09-17T17:23:55.524Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "security-advisories",
          "vendor": "SteeltoeOSS",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.3.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. Prior to 4.3.0, the Steeltoe.Management.Endpoint /actuator/httpexchanges endpoint passes recorded request URIs through MaskedUri, which masks URI user information but does not inspect query strings. When Management:Endpoints:HttpExchanges:IncludeQueryString is enabled, the HttpExchangeRequest response can disclose OAuth tokens, password-reset tokens, signed-URL signatures, API keys, and other query-string secrets from prior traffic to a caller that can reach the explicitly exposed endpoint. The Steeltoe.Management.Endpoint.Actuators.HttpExchanges DEBUG logger also records these URIs, creating a second disclosure channel for users with log access. This issue is fixed in version 4.3.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
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      ],
      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
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      "providerMetadata": {
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      },
      "references": [
        {
          "name": "https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-8phw-xrj9-cpqp",
          "tags": [
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          ],
          "url": "https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-8phw-xrj9-cpqp"
        },
        {
          "name": "https://github.com/SteeltoeOSS/Steeltoe/commit/9bf0ecb9f2d4a34b65f61d41c5625d49071ae9fa",
          "tags": [
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          "url": "https://github.com/SteeltoeOSS/Steeltoe/commit/9bf0ecb9f2d4a34b65f61d41c5625d49071ae9fa"
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          "tags": [
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          ],
          "url": "https://github.com/SteeltoeOSS/Steeltoe/releases/tag/4.3.0"
        }
      ],
      "source": {
        "advisory": "GHSA-8phw-xrj9-cpqp",
        "discovery": "UNKNOWN"
      },
      "title": "Steeltoe.Management.Endpoint: HttpExchanges URI masking leaks query-string secrets"
    }
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  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-75523",
    "datePublished": "2026-09-17T15:35:01.362Z",
    "dateReserved": "2026-08-17T20:49:21.600Z",
    "dateUpdated": "2026-09-17T17:23:55.524Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-8PHW-XRJ9-CPQP

Summary

Impact

Affected configuration

Mitigations

CVE-2026-75523 (GCVE-0-2026-75523)

Tags

Sightings

Nomenclature

Related by attack behaviour