CVE-2026-73479: Improper Encoding or Escaping of Output in Byron dua-cli
dua-cli fails to filter terminal escape sequences when printing marked file paths after exiting the TUI interface. Attackers can craft file names containing OSC/CSI escape sequences that are interpreted by the terminal emulator when printed, enabling title spoofing, clipboard manipulation, or other escape-sequence attacks.
AI Analysis
Technical Summary
The dua-cli application fails to properly encode or escape terminal escape sequences in file paths when printing them after exiting its text user interface. Specifically, crafted file names containing Operating System Command (OSC) or Control Sequence Introducer (CSI) escape sequences are printed verbatim, allowing these sequences to be interpreted by the terminal emulator. This can lead to attacks such as terminal title spoofing or clipboard manipulation by injecting malicious escape codes into the terminal output.
Potential Impact
An attacker who can create or influence file names viewed by dua-cli can execute terminal escape sequences on the victim's terminal emulator. This may result in misleading terminal titles, unauthorized clipboard content changes, or other escape-sequence based manipulations. The vulnerability requires user interaction (UI) and local access (local attack vector) and has a medium severity rating with a CVSS 4.8 score.
Mitigation Recommendations
No official patch or remediation information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid opening or printing untrusted file names in dua-cli or use terminal emulators that restrict or disable interpretation of OSC/CSI sequences.
CVE-2026-73479: Improper Encoding or Escaping of Output in Byron dua-cli
Description
dua-cli fails to filter terminal escape sequences when printing marked file paths after exiting the TUI interface. Attackers can craft file names containing OSC/CSI escape sequences that are interpreted by the terminal emulator when printed, enabling title spoofing, clipboard manipulation, or other escape-sequence attacks.
CVSS v4.0
Score 4.8medium
Affected software
Byron
dua-cli
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The dua-cli application fails to properly encode or escape terminal escape sequences in file paths when printing them after exiting its text user interface. Specifically, crafted file names containing Operating System Command (OSC) or Control Sequence Introducer (CSI) escape sequences are printed verbatim, allowing these sequences to be interpreted by the terminal emulator. This can lead to attacks such as terminal title spoofing or clipboard manipulation by injecting malicious escape codes into the terminal output.
Potential Impact
An attacker who can create or influence file names viewed by dua-cli can execute terminal escape sequences on the victim's terminal emulator. This may result in misleading terminal titles, unauthorized clipboard content changes, or other escape-sequence based manipulations. The vulnerability requires user interaction (UI) and local access (local attack vector) and has a medium severity rating with a CVSS 4.8 score.
Mitigation Recommendations
No official patch or remediation information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid opening or printing untrusted file names in dua-cli or use terminal emulators that restrict or disable interpretation of OSC/CSI sequences.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-12T18:19:17.024Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a7e3a17bf8831d539d70434
Added to database: 08/13/2026, 21:41:43 UTC
Last enriched: 09/25/2026, 02:40:06 UTC
Last updated: 09/28/2026, 13:47:47 UTC
Views: 40
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