CVE catalog

CVE-2021-32563

thunar: CVE-2021-32563

Severity: Medium
Published: May 11, 2021, 5:15:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 3.08% · Oct 25, 2026

An issue was discovered in Thunar before 4.16.7 and 4.17.x before 4.17.2. When called with a regular file as a command-line argument, it delegates to a different program (based on the file type) without user confirmation. This could be used to achieve code execution.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	thunar	sid	`4.20.10-1`	fixed
Debian	thunar	forky	`4.20.10-1`	fixed
Debian	thunar	trixie	`4.20.2-1+deb13u1`	fixed
Debian	thunar	bookworm	`4.18.4-1`	fixed
Ubuntu	thunar	16.04	`1.6.10-1`	vulnerable
Ubuntu	thunar	16.04	`1.6.10-2`	vulnerable
Ubuntu	thunar	16.04	`1.6.10-2ubuntu1`	vulnerable
Ubuntu	thunar	16.04	`1.6.11-0ubuntu0.16.04.1`	vulnerable
Ubuntu	thunar	16.04	`1.6.11-0ubuntu0.16.04.2`	vulnerable
Ubuntu	thunar	18.04	`1.6.12-1`	vulnerable
Ubuntu	thunar	18.04	`1.6.13-1`	vulnerable
Ubuntu	thunar	18.04	`1.6.13-2`	vulnerable
Ubuntu	thunar	18.04	`1.6.14-1`	vulnerable
Ubuntu	thunar	18.04	`1.6.14-1ubuntu1`	vulnerable
Ubuntu	thunar	18.04	`1.6.15-0ubuntu1`	vulnerable
Ubuntu	thunar	18.04	`1.6.15-0ubuntu1.18.04.1`	vulnerable
Ubuntu	thunar	20.04	`1.8.9-1`	vulnerable
Ubuntu	thunar	20.04	`1.8.11-1`	vulnerable
Ubuntu	thunar	20.04	`1.8.12-1`	vulnerable
Ubuntu	thunar	20.04	`1.8.14-0ubuntu1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	thunar	source	sid	`4.16.8-1`	not yet assigned	Not reported	[988394]
Debian	thunar	source	forky	`4.16.8-1`	not yet assigned	Not reported	[988394]
Debian	thunar	source	trixie	`4.16.8-1`	not yet assigned	Not reported	[988394]
Debian	thunar	source	bookworm	`4.16.8-1`	not yet assigned	Not reported	[988394]

[Debian bug #988394]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[gir1.2-thunarx-3.0]Fixed
Source package: [thunar]
Details (2)
- 4.18.4-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
- 4.18.4-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
[libthunarx-3-0]Fixed
Source package: [thunar]
Details (2)
- 4.18.4-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
- 4.18.4-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
[libthunarx-3-dev]Fixed
Source package: [thunar]
Details (2)
- 4.18.4-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
- 4.18.4-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
[thunar]Fixed
Details (2)
- 4.18.4-1 · amd64 · bookworm
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
- 4.18.4-1 · arm64 · bookworm
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
[thunar-data]Fixed
Source package: [thunar]
Details (2)
- 4.18.4-1 · all · bookworm
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12
- 4.18.4-1 · all · bookworm
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · bookworm; dsa · thunar · debian · 12

[Debian 13 (Trixie)]

[gir1.2-thunarx-3.0]Fixed
Source package: [thunar]
Details (2)
- 4.20.2-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · 13
- 4.20.2-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · 13
[libthunarx-3-0]Fixed
Source package: [thunar]
Details (2)
- 4.20.2-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · 13
- 4.20.2-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · 13
[libthunarx-3-dev]Fixed
Source package: [thunar]
Details (2)
- 4.20.2-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · 13
- 4.20.2-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · 13
[thunar]Fixed
Details (2)
- 4.20.2-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · 13
- 4.20.2-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · 13
[thunar-data]Fixed
Source package: [thunar]
Details (2)
- 4.20.2-1+deb13u1 · all · trixie
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · 13
- 4.20.2-1+deb13u1 · all · trixie
  Fixed · Fixed: 4.16.8-1
  dsa · thunar · debian · 13

Observed: Oct 23, 2026, 5:57:05 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]