| Name | CVE-2026-34352 |
| Description | In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen contents, or cause an application crash, because of incorrect permissions. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1132166 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| tigervnc (PTS) | bullseye | 1.11.0+dfsg-2+deb11u1 | vulnerable |
| bookworm | 1.12.0+dfsg-8 | vulnerable |
| forky, sid, trixie | 1.15.0+dfsg-2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| tigervnc | source | (unstable) | (unfixed) | | | 1132166 |
Notes
[trixie] - tigervnc <no-dsa> (Minor issue)
[bookworm] - tigervnc <no-dsa> (Minor issue)
[bullseye] - tigervnc <postponed> (Minor issue)
https://groups.google.com/g/tigervnc-announce/c/anHL9WLshLI
https://www.openwall.com/lists/oss-security/2026/03/26/7
Fixed by: https://github.com/TigerVNC/tigervnc/commit/a3fbb54278ebe91bf573f44b32d64e78a33a4828 (v1.16.2)