CVE-2026-88907 - Vulnerability Details - OpenCVE

Incorrect Authorization vulnerability in TÜBİTAK ULAKBİM UlakPDF allows Authentication Bypass.

This issue affects UlakPDF: through 09092026.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

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

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

TÜBİTAK ULAKBİM

UlakPDF

unaffected

Version	Status	Constraints
`0`	affected	≤ 09092026

No data.

No data.

No data.

Project Subscriptions

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 Authentication Bypass. This issue affects UlakPDF: through 09092026.
Title		SAML ePPN Attribute Validation Bypass in TÜBİTAK ULAKBİM's UlakPDF
Weaknesses		CWE-863
References		https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170
Metrics		cvssV3_1 `{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: TR-CERT

Published: 2026-09-24T12:46:21.079Z

Updated: 2026-09-24T14:41:39.471Z

Reserved: 2026-09-10T12:21:09.545Z

Link: CVE-2026-88907

Vulnrichment

Updated: 2026-09-24T14:41:35.928Z

NVD

Status : Deferred

Published: 2026-09-24T13:17:15.873

Modified: 2026-09-24T19:36:51.280

Link: CVE-2026-88907

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-863

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