Vulnerability-Lookup

GHSA-Q3PH-3GV2-G5WQ

Vulnerability from github – Published: 2026-10-27 06:31 – Updated: 2026-10-27 06:31

Details

Psono Server CE && EE versions 0.1.0 through 7.2.3 accepted a user-controlled host when configuring a personal Duo device and passed it to the Duo client without an allowlist or explicit timeout. An authenticated remote attacker could cause the server to connect to selected hosts over HTTPS on port 443 and distinguish failure modes, providing an internal DNS and service-reachability oracle. Connections still required TLS certificate validation, and the flaw did not provide arbitrary protocol or port access. Unresponsive targets could also occupy a server worker until the operating-system timeout.

Severity

5.4 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-117471"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-27T06:17:25Z",
    "severity": "MODERATE"
  },
  "details": "Psono Server CE \u0026\u0026 EE versions 0.1.0 through 7.2.3 accepted a user-controlled host when configuring a personal Duo device and passed it to the Duo client without an allowlist or explicit timeout. An authenticated remote attacker could cause the server to connect to selected hosts over HTTPS on port 443 and distinguish failure modes, providing an internal DNS and service-reachability oracle. Connections still required TLS certificate validation, and the flaw did not provide arbitrary protocol or port access. Unresponsive targets could also occupy a server worker until the operating-system timeout.",
  "id": "GHSA-q3ph-3gv2-g5wq",
  "modified": "2026-10-27T06:31:23Z",
  "published": "2026-10-27T06:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-117471"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/esaqa/esaqa/security-advisories/-/blob/master/advisories/CVE-2026-117471.md"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/esaqa/psono/psono-server"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/esaqa/psono/psono-server/-/blob/v7.2.3/psono/restapi/serializers/new_duo.py"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/esaqa/psono/psono-server/-/commit/4059830475744791f3d3a1daa4e1603aea5549ed"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/esaqa/psono/psono-server/-/releases/v7.2.4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-117471 (GCVE-0-2026-117471)

Vulnerability from cvelistv5 – Published: 2026-10-27 05:55 – Updated: 2026-10-27 05:55

Title

User-controlled Duo host permits authenticated SSRF in Psono Server

Summary

Severity

5.4 (Medium)


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

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

esaqa CNA under the ENISA root

CNA scorecard – unranked: 5 records in the last 180 days, 10 needed details

References

5 references

URL	Tags
https://gitlab.com/esaqa/esaqa/security-advisorie…	vendor-advisory
https://gitlab.com/esaqa/psono/psono-server/-/blo…	technical-description
https://gitlab.com/esaqa/psono/psono-server/-/com…	patch
https://gitlab.com/esaqa/psono/psono-server/-/rel…	release-notes
https://gitlab.com/esaqa/psono/psono-server	product

Impacted products

1 product

Vendor	Product	Version
esaqa GmbH	Psono	Affected: 0.1.0 , < 7.2.4 (semver)

Date Public

2026-10-27 00:00

Credits

Ryan Chaplin

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Psono Server Community Edition",
            "Psono Server Enterprise Edition"
          ],
          "product": "Psono",
          "programFiles": [
            "psono/restapi/serializers/new_duo.py",
            "psono/restapi/utils/duo.py"
          ],
          "repo": "https://gitlab.com/esaqa/psono/psono-server",
          "vendor": "esaqa GmbH",
          "versions": [
            {
              "lessThan": "7.2.4",
              "status": "affected",
              "version": "0.1.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Ryan Chaplin"
        }
      ],
      "datePublic": "2026-10-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003ePsono Server CE \u0026amp;\u0026amp; EE versions 0.1.0 through 7.2.3 accepted a user-controlled host when configuring a personal Duo device and passed it to the Duo client without an allowlist or explicit timeout. An authenticated remote attacker could cause the server to connect to selected hosts over HTTPS on port 443 and distinguish failure modes, providing an internal DNS and service-reachability oracle. Connections still required TLS certificate validation, and the flaw did not provide arbitrary protocol or port access. Unresponsive targets could also occupy a server worker until the operating-system timeout.\u003c/p\u003e"
            }
          ],
          "value": "Psono Server CE \u0026\u0026 EE versions 0.1.0 through 7.2.3 accepted a user-controlled host when configuring a personal Duo device and passed it to the Duo client without an allowlist or explicit timeout. An authenticated remote attacker could cause the server to connect to selected hosts over HTTPS on port 443 and distinguish failure modes, providing an internal DNS and service-reachability oracle. Connections still required TLS certificate validation, and the flaw did not provide arbitrary protocol or port access. Unresponsive targets could also occupy a server worker until the operating-system timeout."
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "An authenticated user could induce outbound HTTPS connections to selected hosts, use response differences as an internal reachability oracle, and occupy workers through connection timeouts."
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918 Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T05:55:07.068Z",
        "orgId": "fdf66990-8419-4c8c-8848-ec15d75773b4",
        "shortName": "esaqa"
      },
      "references": [
        {
          "name": "Vendor security advisory for CVE-2026-117471",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://gitlab.com/esaqa/esaqa/security-advisories/-/blob/master/advisories/CVE-2026-117471.md"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://gitlab.com/esaqa/psono/psono-server/-/blob/v7.2.3/psono/restapi/serializers/new_duo.py"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.com/esaqa/psono/psono-server/-/commit/4059830475744791f3d3a1daa4e1603aea5549ed"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://gitlab.com/esaqa/psono/psono-server/-/releases/v7.2.4"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://gitlab.com/esaqa/psono/psono-server"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUpgrade to Psono Server 7.2.4 or later.\u003c/p\u003e"
            }
          ],
          "value": "Upgrade to Psono Server 7.2.4 or later."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-29T16:10:00.000Z",
          "value": "Vulnerability reported to vendor"
        },
        {
          "lang": "en",
          "time": "2026-07-30T08:07:00.000Z",
          "value": "Vendor fix implemented"
        },
        {
          "lang": "en",
          "time": "2026-07-30T13:16:00.000Z",
          "value": "Psono Server CE \u0026 EE 7.2.4 released"
        }
      ],
      "title": "User-controlled Duo host permits authenticated SSRF in Psono Server",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "fdf66990-8419-4c8c-8848-ec15d75773b4",
    "assignerShortName": "esaqa",
    "cveId": "CVE-2026-117471",
    "datePublished": "2026-10-27T05:55:07.068Z",
    "dateReserved": "2026-10-27T05:33:18.001Z",
    "dateUpdated": "2026-10-27T05:55:07.068Z",
    "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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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