CVE-2026-5140: Authorization Bypass in TUBITAK BILGEM's Pardus Update

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-29 · updated 2026-10-26
Weakness: CWE-93

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.

Affected products

TUBITAK BILGEM Software Technologies Research Institute Pardus Update: from 0.6.3 before 0.6.4 — fixed in 0.6.4

How to fix

Upgrade to a fixed version: TUBITAK BILGEM Software Technologies Research Institute Pardus Update 0.6.4. Check the vendor advisory for mitigations.

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0131
https://www.usom.gov.tr/bildirim/tr-26-0131

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