CVE-2026-5140
Deferred Deferred - Pending Action

CRLF Injection in Pardus Allows Authentication Bypass

Vulnerability report for CVE-2026-5140, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-04-29

Last updated on: 2026-06-06

Assigner: Computer Emergency Response Team of the Republic of Turkey

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.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-04-29
Last Modified
2026-06-06
Generated
2026-07-06
AI Q&A
2026-04-29
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
tubitak_bilgem pardus From 0.6.4 (inc) to 0.8.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-93 The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

Attack-Flow Graph

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Executive Summary

This vulnerability is an improper neutralization of CRLF sequences, also known as CRLF injection, in the Pardus software developed by TUBITAK BILGEM Software Technologies Research Institute. It allows an attacker to bypass authentication mechanisms.

Impact Analysis

The vulnerability can have a severe impact as it allows an attacker to bypass authentication, potentially gaining unauthorized access to the system. The CVSS score of 9.6 indicates high severity with impacts on confidentiality, integrity, and availability.

Executive Summary

This vulnerability is an improper neutralization of CRLF sequences, also known as CRLF injection, in the Pardus software developed by TUBITAK BILGEM Software Technologies Research Institute. It allows an attacker to bypass authentication mechanisms.

Impact Analysis

The vulnerability can lead to an authentication bypass, which means an attacker could potentially gain unauthorized access to the system. This can result in a high impact on confidentiality, integrity, and availability of the affected system.

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