What’s Vulnerable › Vulnerabilities

CVE-2022-23853

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-02-11 · updated 2026-06-17
• Weakness: CWE-427

Description

The LSP (Language Server Protocol) plugin in KDE Kate before 21.12.2 and KTextEditor before 5.91.0 tries to execute the associated LSP server binary when opening a file of a given type. If this binary is absent from the PATH, it will try running the LSP server binary in the directory of the file that was just opened (due to a misunderstanding of the QProcess API, that was never intended). This can be an untrusted directory.

Affected products

• KDE Kate: before 21.12.2 — fixed in 21.12.2
• KDE Ktexteditor: before 5.91.0 — fixed in 5.91.0

How to fix

Upgrade to a fixed version: KDE Kate 21.12.2; KDE Ktexteditor 5.91.0. Check the vendor advisory for mitigations.

References

• https://apps.kde.org/kate/
• https://kde.org/info/security/advisory-20220131-1.txt
• https://security.gentoo.org/glsa/202401-21
• https://apps.kde.org/kate/
• https://kde.org/info/security/advisory-20220131-1.txt
• https://security.gentoo.org/glsa/202401-21

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