---
id: CVE-2026-88907
title: >-
  Incorrect Authorization vulnerability in TÜBİTAK ULAKBİM UlakPDF allows
  Authentication Bypass.


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


  This issue affects UlakPDF: through 09092026.
severity: high
cvss: 7.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-863
vendor: TÜBİTAK ULAKBİM
product: UlakPDF
affected:
  - UlakPDF <= 09092026
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T19:36:51.280'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88907'
references:
  - url: 'https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170'
    label: iletisim@usom.gov.tr
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-24T14:41:31.719339Z'
ingestedAt: '2026-09-24T13:43:25.671Z'
---

## Overview

Incorrect Authorization vulnerability in TÜBİTAK ULAKBİM UlakPDF allows Authentication Bypass.

This issue affects UlakPDF: through 09092026.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.