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Fencer Intel
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 4y ago modified 4mo 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

Is CVE-2022-23853 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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, 2026-11-09).

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 Intel 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.