What is CVE-2026-88916?

CVE-2026-88916 is a medium-severity vulnerability in Tübitak Ulakbim Ulakpdf, classified under Incorrect Authorization. CVSS score: 6.8/10. Published 2026-09-24.

How severe is CVE-2026-88916?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Auth bypass in Tübitak Ulakbim Ulakpdf

CVE-2026-88916

Incorrect Authorization vulnerability in TÜBİTAK ULAKBİM UlakPDF allows Privilege Escalation. This issue affects UlakPDF: through 09092026.

Vulnerability class: Broken Access Control

Published 2026-09-24 · last modified 2026-09-24.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (11.4th percentile), scored 2026-11-09.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Tübitak Ulakbim Ulakpdf

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170 (government-resource)

Frequently asked questions

What is CVE-2026-88916?: CVE-2026-88916 is a medium-severity vulnerability in Tübitak Ulakbim Ulakpdf, classified under Incorrect Authorization. CVSS score: 6.8/10. Published 2026-09-24.
How severe is CVE-2026-88916?: Medium severity. CVSS v3 base score is 6.8 out of 10.