CVE-2026-88907

CVEs › CVE-2026-88907

Description

Incorrect Authorization vulnerability in TÜBİTAK ULAKBİM UlakPDF allows Authentication Bypass. This issue affects UlakPDF: through 09092026.

Overview

State: PUBLISHED
Assigner (CNA): TR-CERT
CVSS severity: HIGH
CVSS score: 7.4 / 10
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Effective score: 7.4 / 10 HIGH source: CNA overview
CWE(s): CWE-863
Reserved: 2026-09-10
Published: 2026-09-24 12:46 UTC
Last updated: 2026-09-24 14:41 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/88xxx/CVE-2026-88907.json
Linked Threat: CVE-2026-88907 — SAML ePPN Attribute Validation Bypass in TÜBİTAK ULAKBİM's UlakPDF

NVD / KEV / EPSS data refreshed 2026-09-25 04:33 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

Affected products (1)

Vendor	Product	Versions	Platforms
TÜBİTAK ULAKBİM	UlakPDF	`0` (affected)	—

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170 government-resource

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-88907.json.

{
  "containers": {
    "adp": [
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        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2026-88907",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-24T14:41:31.719339Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-24T14:41:39.471Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "UlakPDF",
          "vendor": "T\u00dcB\u0130TAK ULAKB\u0130M",
          "versions": [
            {
              "lessThanOrEqual": "09092026",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Ahmed Emin Ayg\u00f6ren"
        }
      ],
      "datePublic": "2026-09-24T12:41:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "Incorrect Authorization vulnerability in T\u00dcB\u0130TAK ULAKB\u0130M UlakPDF allows Authentication Bypass.<p>This issue affects UlakPDF: through 09092026.</p>"
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          "capecId": "CAPEC-115",
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            {
              "lang": "en",
              "value": "CAPEC-115 Authentication Bypass"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
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          ]
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      "providerMetadata": {
        "dateUpdated": "2026-09-24T12:46:21.079Z",
        "orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21",
        "shortName": "TR-CERT"
      },
      "references": [
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          "tags": [
            "government-resource"
          ],
          "url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170"
        }
      ],
      "source": {
        "advisory": "TR-26-1170",
        "defect": [
          "TR-26-1170"
        ],
        "discovery": "UNKNOWN"
      },
      "title": "SAML ePPN Attribute Validation Bypass in T\u00dcB\u0130TAK ULAKB\u0130M's UlakPDF",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
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  "cveMetadata": {
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    "assignerShortName": "TR-CERT",
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    "datePublished": "2026-09-24T12:46:21.079Z",
    "dateReserved": "2026-09-10T12:21:09.545Z",
    "dateUpdated": "2026-09-24T14:41:39.471Z",
    "state": "PUBLISHED"
  },
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