CVE-2026-88916 - Vulnerability Details - OpenCVE

Incorrect Authorization vulnerability in TÜBİTAK ULAKBİM UlakPDF allows Privilege Escalation.

This issue affects UlakPDF: through 09092026.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170

History

Thu, 24 Sep 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Thu, 24 Sep 2026 13:00:00 +0000

Type	Values Removed	Values Added
Description		Incorrect Authorization vulnerability in TÜBİTAK ULAKBİM UlakPDF allows Privilege Escalation. This issue affects UlakPDF: through 09092026.
Title		Admin Access Bypass via Header Fallback in TÜBİTAK ULAKBİM's UlakPDF
Weaknesses		CWE-863
References		https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170
Metrics		cvssV3_1 `{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: TR-CERT

Published: 2026-09-24T12:49:44.331Z

Updated: 2026-09-24T14:42:00.710Z

Reserved: 2026-09-10T13:07:47.700Z

Link: CVE-2026-88916

Vulnrichment

Updated: 2026-09-24T14:41:56.360Z

NVD

Status : Received

Published: 2026-09-24T13:17:16.060

Modified: 2026-09-24T15:17:50.650

Link: CVE-2026-88916

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-863

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-88916", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "state": "PUBLISHED", "assignerShortName": "TR-CERT", "dateReserved": "2026-09-10T13:07:47.700Z", "datePublished": "2026-09-24T12:49:44.331Z", "dateUpdated": "2026-09-24T14:42:00.710Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-09-24T12:49:44.331Z"}, "title": "Admin Access Bypass via Header Fallback in T\u00dcB\u0130TAK ULAKB\u0130M's UlakPDF", "datePublic": "2026-09-24T12:47:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-863", "description": "CWE-863 Incorrect Authorization", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-233", "descriptions": [{"lang": "en", "value": "CAPEC-233 Privilege Escalation"}]}], "affected": [{"vendor": "T\u00dcB\u0130TAK ULAKB\u0130M", "product": "UlakPDF", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "09092026", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Incorrect Authorization vulnerability in T\u00dcB\u0130TAK ULAKB\u0130M UlakPDF allows Privilege Escalation.\n\nThis issue affects UlakPDF: through 09092026.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Incorrect Authorization vulnerability in T\u00dcB\u0130TAK ULAKB\u0130M UlakPDF allows Privilege Escalation.<p>This issue affects UlakPDF: through 09092026.</p>"}]}], "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170", "tags": ["government-resource"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 6.8, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"}}], "credits": [{"lang": "en", "value": "Ahmed Emin Ayg\u00f6ren", "type": "finder"}], "source": {"defect": ["TR-26-1170"], "advisory": "TR-26-1170", "discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-24T14:41:52.048253Z", "id": "CVE-2026-88916", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-24T14:42:00.710Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-88916", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-24T14:41:52.048253Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-24T14:41:56.360Z"}}], "cna": {"title": "Admin Access Bypass via Header Fallback in T\u00dcB\u0130TAK ULAKB\u0130M's UlakPDF", "source": {"defect": ["TR-26-1170"], "advisory": "TR-26-1170", "discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "Ahmed Emin Ayg\u00f6ren"}], "impacts": [{"capecId": "CAPEC-233", "descriptions": [{"lang": "en", "value": "CAPEC-233 Privilege Escalation"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "T\u00dcB\u0130TAK ULAKB\u0130M", "product": "UlakPDF", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "09092026"}], "defaultStatus": "unaffected"}], "datePublic": "2026-09-24T12:47:00.000Z", "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170", "tags": ["government-resource"]}], "x_generator": {"engine": "Vulnogram 1.0.5"}, "descriptions": [{"lang": "en", "value": "Incorrect Authorization vulnerability in T\u00dcB\u0130TAK ULAKB\u0130M UlakPDF allows Privilege Escalation.\n\nThis issue affects UlakPDF: through 09092026.", "supportingMedia": [{"type": "text/html", "value": "Incorrect Authorization vulnerability in T\u00dcB\u0130TAK ULAKB\u0130M UlakPDF allows Privilege Escalation.<p>This issue affects UlakPDF: through 09092026.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "CWE-863 Incorrect Authorization"}]}], "providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-09-24T12:49:44.331Z"}}}, "cveMetadata": {"cveId": "CVE-2026-88916", "state": "PUBLISHED", "dateUpdated": "2026-09-24T14:42:00.710Z", "dateReserved": "2026-09-10T13:07:47.700Z", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "datePublished": "2026-09-24T12:49:44.331Z", "assignerShortName": "TR-CERT"}, "dataVersion": "5.2"}