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Fencer Vulns
high 7.8

CVE-2022-23853 json

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 serv…

published 2022-02-11 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-28779

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

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.

Patch / fix

  • kde kate 21.12.2
  • kde ktexteditor 5.91.0
  • kate Debian 14, Debian 13, Debian 12 4:21.12.2-1
  • ktexteditor Debian 14, Debian 13, Debian 12 5.93.0-1

debian advisories DEBIAN-CVE-2022-23853

  • libqt5-qtbase SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +9 more 5.12.7-4.17.1

suse advisories SUSE-SU-2022:0841-1

  • kate openSUSE Tumbleweed 21.12.2-1.1
  • libqt5-qtbase openSUSE Tumbleweed 5.15.2+kde294-2.1
  • libqt5-qtbase openSUSE Leap 15.3 5.12.7-4.17.1

opensuse advisories openSUSE-SU-2024:11801-1openSUSE-SU-2024:11813-1openSUSE-SU-2022:0841-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-23853 updated cvss 5.5

ktexteditor: Missing validation of binaries executed via QProcess

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.89% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-427 Uncontrolled Search Path Element

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.