# CVE-2026-121547: dysk before 3.8.2 Terminal Escape Sequence Injection via Mount Metadata

Status: published. Published: 2026-11-03. Updated: 2026-11-03.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/Canop/dysk/commit/726f4f554d7c1ede21363c29b593ab130ca28d86
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/Canop/dysk/pull/126

## Affected products and versions

- Canop / dysk (dysk): ≥ 0; < 3.8.2 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 1 (low); CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 2.2 (low); CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N; source: CNA: VulnCheck

- CVSS 4.0: 1 (low); CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 2.2 (low); CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-150

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/Canop/dysk/issues/125 (CNA: VulnCheck; issue-tracking)

- https://github.com/Canop/dysk (CNA: VulnCheck; product)

- https://github.com/Canop/dysk/commit/726f4f554d7c1ede21363c29b593ab130ca28d86 (CNA: VulnCheck; patch)

- https://github.com/Canop/dysk/blob/v3.8.1/cli/src/table.rs#L60-L75 (CNA: VulnCheck; technical-description)

- https://github.com/Canop/dysk/pull/126 (CNA: VulnCheck; technical-description, patch, issue-tracking)

- https://www.vulncheck.com/advisories/dysk-before-3.8.2-terminal-escape-sequence-injection-via-mount-metadata (CNA: VulnCheck; third-party-advisory)

- https://github.com/Canop/dysk (disclosure@vulncheck.com)

- https://github.com/Canop/dysk/blob/v3.8.1/cli/src/table.rs#L60-L75 (disclosure@vulncheck.com)

- https://github.com/Canop/dysk/commit/726f4f554d7c1ede21363c29b593ab130ca28d86 (disclosure@vulncheck.com)

- https://github.com/Canop/dysk/issues/125 (disclosure@vulncheck.com)

- https://github.com/Canop/dysk/pull/126 (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/dysk-before-3.8.2-terminal-escape-sequence-injection-via-mount-metadata (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-121547; retrieved 2026-11-03; source updated 2026-11-03

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-121547; retrieved 2026-11-03; source updated 2026-11-03

Revision: 165a4f22595a828a0a8a406b69cc1109626d25ccaac39ba6facd0905ca50070e

Canonical: https://y2.dev/cve/CVE-2026-121547

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