Vulnerability-Lookup

GHSA-44P5-3M5G-VFHJ

Vulnerability from github – Published: 2026-07-14 03:31 – Updated: 2026-09-01 21:20

Summary

SAP Approuter has an Open Redirect vulnerability

Details

SAP Approuter does not properly validate incoming request headers during the OAuth2 login flow under certain configurations. This allows an unauthenticated remote attacker to craft a malicious link which, when clicked by a victim, could lead to unauthorized access. Successful exploitation results in a high impact to the confidentiality and integrity with no impact on the availability of the application.

Severity

8.1 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@sap/approuter"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "21.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44745"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-01T21:20:47Z",
    "nvd_published_at": "2026-07-14T01:16:17Z",
    "severity": "HIGH"
  },
  "details": "SAP Approuter does not properly validate incoming request headers during the OAuth2 login flow under certain configurations. This allows an unauthenticated remote attacker to craft a malicious link which, when clicked by a victim, could lead to unauthorized access. Successful exploitation results in a high impact to the confidentiality and integrity with no impact on the availability of the application.",
  "id": "GHSA-44p5-3m5g-vfhj",
  "modified": "2026-09-01T21:20:47Z",
  "published": "2026-07-14T03:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44745"
    },
    {
      "type": "WEB",
      "url": "https://me.sap.com/notes/3741519"
    },
    {
      "type": "WEB",
      "url": "https://url.sap/sapsecuritypatchday"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SAP Approuter has an Open Redirect vulnerability"
}

CVE-2026-44745 (GCVE-0-2026-44745)

Vulnerability from cvelistv5 – Published: 2026-07-14 00:18 – Updated: 2026-07-14 12:39

Title

Open Redirect vulnerability in SAP Approuter

Summary

Severity

8.1 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-14 12:39 UTC

CWE

CWE-601 - URL Redirection to Untrusted Site

Assigner

sap mitre root

References

2 references

URL	Tags
https://me.sap.com/notes/3741519
https://url.sap/sapsecuritypatchday

Impacted products

1 product

Vendor	Product	Version
SAP_SE	SAP Approuter	Affected: SAP Approuter node.js package < 21.2.0

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JSON

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                "options": [
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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-14T12:39:28.750959Z",
                "version": "2.0.3"
              },
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          "vendor": "SAP_SE",
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      "metrics": [
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            "baseScore": 8.1,
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
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        },
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    "state": "PUBLISHED"
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  "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.

Action not permitted

GHSA-44P5-3M5G-VFHJ

CVE-2026-44745 (GCVE-0-2026-44745)

Tags

Sightings

Nomenclature