Is CVE-2026-34744 actively exploited?

No active exploitation of CVE-2026-34744 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34744 be exploited remotely?

Yes. CVE-2026-34744 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34744?

CVE-2026-34744 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-34744

CWE-200Published: May 19, 2026· Updated: May 20, 2026

5.3

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.6th

Official Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior permit a user to list and download their own attachments from an Issue created by another user even after it becomes private, bypassing read access revocation. The loss of confidentiality caused by this vulnerability is minimal, considering that only attachments previously uploaded by the user themselves remain accessible. This issue has been fixed in version 2.82.2.

NVD Source

Technical Analysis

CVE-2026-34744 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.Low

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X