Vulnerability-Lookup

GHSA-JRWC-G36X-GQC7

Vulnerability from github – Published: 2026-08-07 12:31 – Updated: 2026-08-07 12:31

Details

The Webbox of TeamDavid by Tobit Laboratories AG constructs redirect URLs using user-supplied input, which is appended to the redirect target in a 302 HTTP response. By using URL-encoded characters such as “%2e” (representing a dot), an attacker can manipulate the portion of the URL following the top-level domain (TLD). If a similar, registerable TLD exists (for example, if “.com” is the application’s domain, and “.company” is available for registration), an attacker can craft a URL to redirect users to a malicious “.company” domain. By using URL-encoded line feeds, it becomes possible to insert arbitrary response headers in the server's HTTP response.

This issue affects TeamDavid through Rollout 524.

Severity

5.3 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-12071"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-07T10:16:56Z",
    "severity": "MODERATE"
  },
  "details": "The Webbox of TeamDavid by\u00a0Tobit Laboratories AG\u00a0constructs redirect URLs using user-supplied input, \nwhich is appended to the redirect target in a 302 HTTP response. By \nusing URL-encoded characters such as \u201c%2e\u201d (representing a dot), an \nattacker can manipulate the portion of the URL following the top-level \ndomain (TLD). If a similar, registerable TLD exists (for example, if \n\u201c.com\u201d is the application\u2019s domain, and \u201c.company\u201d is available for \nregistration), an attacker can craft a URL to redirect users to a \nmalicious \u201c.company\u201d domain. By using URL-encoded line feeds, it becomes\n possible to insert arbitrary response headers in the server\u0027s HTTP \nresponse.\n\n\n\nThis issue affects TeamDavid through Rollout 524.",
  "id": "GHSA-jrwc-g36x-gqc7",
  "modified": "2026-08-07T12:31:57Z",
  "published": "2026-08-07T12:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12071"
    },
    {
      "type": "WEB",
      "url": "https://david.tobit.software/releasenotes"
    },
    {
      "type": "WEB",
      "url": "https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/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"
    }
  ]
}

CVE-2026-12071 (GCVE-0-2026-12071)

Vulnerability from cvelistv5 – Published: 2026-08-07 09:40 – Updated: 2026-08-07 09:40

Title

TeamDavid: Header Injection leading to Open Redirect via URL-encoded characters

Summary

Severity

5.3 (Medium)


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

CWE

CWE-601 - URL redirection to untrusted site ('open redirect')

Assigner

NCSC.ch

References

2 references

URL	Tags
https://david.tobit.software/releasenotes	release-notes
https://labs.infoguard.ch/posts/22-cves-in-david-…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Tobit Laboratories AG	TeamDavid	Affected: 0 , ≤ Rollout 524 (custom)

Credits

Dario Weiss of InfoGuard Labs Olivier Becker of InfoGuard Labs Lucas Dodgson of InfoGuard Labs

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Webbox"
          ],
          "product": "TeamDavid",
          "vendor": "Tobit Laboratories AG",
          "versions": [
            {
              "lessThanOrEqual": "Rollout 524",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Dario Weiss of InfoGuard Labs"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Olivier Becker of InfoGuard Labs"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Lucas Dodgson of InfoGuard Labs"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003eThe Webbox of TeamDavid by\u0026nbsp;Tobit Laboratories AG\u0026nbsp;constructs redirect URLs using user-supplied input, \nwhich is appended to the redirect target in a 302 HTTP response. By \nusing URL-encoded characters such as \u201c%2e\u201d (representing a dot), an \nattacker can manipulate the portion of the URL following the top-level \ndomain (TLD). If a similar, registerable TLD exists (for example, if \n\u201c.com\u201d is the application\u2019s domain, and \u201c.company\u201d is available for \nregistration), an attacker can craft a URL to redirect users to a \nmalicious \u201c.company\u201d domain. By using URL-encoded line feeds, it becomes\n possible to insert arbitrary response headers in the server\u0027s HTTP \nresponse.\u003c/div\u003e\u003cp\u003eThis issue affects TeamDavid through Rollout 524.\u003c/p\u003e"
            }
          ],
          "value": "The Webbox of TeamDavid by\u00a0Tobit Laboratories AG\u00a0constructs redirect URLs using user-supplied input, \nwhich is appended to the redirect target in a 302 HTTP response. By \nusing URL-encoded characters such as \u201c%2e\u201d (representing a dot), an \nattacker can manipulate the portion of the URL following the top-level \ndomain (TLD). If a similar, registerable TLD exists (for example, if \n\u201c.com\u201d is the application\u2019s domain, and \u201c.company\u201d is available for \nregistration), an attacker can craft a URL to redirect users to a \nmalicious \u201c.company\u201d domain. By using URL-encoded line feeds, it becomes\n possible to insert arbitrary response headers in the server\u0027s HTTP \nresponse.\n\n\n\nThis issue affects TeamDavid through Rollout 524."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-601",
              "description": "CWE-601 URL redirection to untrusted site (\u0027open redirect\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-07T09:40:52.596Z",
        "orgId": "455daabc-a392-441d-aa46-37d35189897c",
        "shortName": "NCSC.ch"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://david.tobit.software/releasenotes"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "TeamDavid: Header Injection leading to Open Redirect via URL-encoded characters",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "455daabc-a392-441d-aa46-37d35189897c",
    "assignerShortName": "NCSC.ch",
    "cveId": "CVE-2026-12071",
    "datePublished": "2026-08-07T09:40:52.596Z",
    "dateReserved": "2026-06-12T09:32:52.061Z",
    "dateUpdated": "2026-08-07T09:40:52.596Z",
    "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.

Action not permitted

GHSA-JRWC-G36X-GQC7

CVE-2026-12071 (GCVE-0-2026-12071)

Tags

Sightings

Nomenclature