Integer Overflow Vulnerability in Freedesktop Poppler Product
CVE-2026-102621

4.8MEDIUM

Key Information:

Vendor

Freedesktop

Status
Poppler
Vendor
CVE Published:
29 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-102621?

A vulnerability has been discovered in Freedesktop Poppler versions prior to 26.09.0, specifically in the function SplashClip::clipToPath. This issue can be exploited through local environment manipulation, leading to an integer overflow. Publicly available exploits exist, underscoring the need for immediate action. Users are strongly advised to upgrade to version 26.09.0, which contains the necessary patch (commit id: 323c91036d99926a8b90dc14329f7b40aece22f8) to mitigate the risk.

Affected Version(s)

Poppler 26.08

Poppler 26.09.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-102621 - Proof of Concept

References

https://vuldb.com/vuln/411411
vdb-entrytechnical-description
https://vuldb.com/vuln/411411/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-102621
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

r1ck99 (VulDB User)
.