Terminal escape sequence injection in Canop dysk via mount metadata
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Canop dysk before 3.8.2 does not sanitize mount metadata before rendering it in table and CSV output, which allows terminal escape sequence injection (CWE-150). A local user with low privileges can create FUSE mounts whose mount-point names or fsname contain ESC or OSC sequences. When another user runs dysk, these sequences can spoof or hide output and change the window title.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
Canop dysk before 3.8.2 contains a terminal escape sequence injection vulnerability that allows local users to inject control sequences by crafting mount metadata rendered unsanitized in table and CSV output. Attackers can create FUSE mounts with ESC/OSC sequences in mount-point names or fsname, causing spoofed or hidden output and window-title changes when another user runs dysk.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Upgrade Canop dysk to version 3.8.2, which fixes this issue.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
- Fix · CNA dysk (Canop) Fixed in 3.8.2
Timeline
- 2026-11-03 Threatist record created from CVE-2026-121547
- 2026-11-03 CISA SSVC decision points changed
- 2026-11-03 Alias added: GHSA-69c2-wcm2-5698
References
More Canop vulnerabilities
- TI-2026-51072 broot Terminal Escape Sequence Injection via Unsanitized File and Directory Names in the Tree View CVSS 4.0LOW 2.4
Sources
- CVE-2026-121547 · CVE Program
- CVE-2026-121547 · NVD
- FIRST EPSS
- GHSA-69c2-wcm2-5698 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences