Admin Access Bypass via Header Fallback in TÜBİTAK ULAKBİM's UlakPDF
Priority LOW 31CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
Incorrect Authorization vulnerability in TÜBİTAK ULAKBİM UlakPDF allows Privilege Escalation. This issue affects UlakPDF: through 09092026.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00211 11th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TÜBİTAK ULAKBİM | UlakPDF | up to 09092026 | — | No fix listed | CNA |
- UlakPDF VendorTÜBİTAK ULAKBİM Affected up to 09092026 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-88916
- 2026-10-03 Alias added: GHSA-6gp4-g9px-6pmh
References
More TÜBİTAK ULAKBİM vulnerabilities
- TI-2026-60285 SAML ePPN Attribute Validation Bypass in TÜBİTAK ULAKBİM's UlakPDF CVSS 3.1HIGH 7.4
Sources
- CVE-2026-88916 · CVE Program
- CVE-2026-88916 · NVD
- FIRST EPSS
- GHSA-6gp4-g9px-6pmh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences