DNS Over HTTPS Vulnerability in BentoPDF Privacy-Focused PDF Toolkit
CVE-2026-102354

6.8MEDIUM

Key Information:

Vendor

Alam00000

Status
BentoPDF
Vendor
CVE Published:
14 October 2026

What is CVE-2026-102354?

A vulnerability in the BentoPDF toolkit allows attackers to exploit improper DNS-over-HTTPS safety checks in versions up to 2.8.6. The flaw arises when proxy secrets are not validated, enabling an attacker with control over authoritative DNS to manipulate the Origin header. This can lead to the acceptance of forged certificate URLs, potentially exposing sensitive data. Notably, while exploitation requires precise timing and may be limited by network reachability, it poses significant risks if not addressed. The issue has been rectified in version 2.8.7 of BentoPDF.

Affected Version(s)

bentopdf < 2.8.7

References

https://github.com/alam00000/bentopdf/security/advisories...
x_refsource_CONFIRM
https://github.com/alam00000/bentopdf/commit/45496fcd2ed6...
x_refsource_MISC
https://github.com/alam00000/bentopdf/commit/58cd1a8893bf...
x_refsource_MISC

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.