Is CVE-2026-5140 actively exploited?

No active exploitation of CVE-2026-5140 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-5140 be exploited remotely?

Yes. CVE-2026-5140 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-5140?

CVE-2026-5140 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-5140

CWE-93Published: April 29, 2026· Updated: May 4, 2026

8.8

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:16.8th

Official Description

Improper neutralization of CRLF sequences ('CRLF injection') vulnerability in TUBITAK BILGEM Software Technologies Research Institute Pardus Update allows Authentication Bypass.

This issue affects Pardus Update: from 0.6.3 before 0.6.4.

NVD Source

Technical Analysis

CVE-2026-5140 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.