Syncthing version 0.14.33 and older is vulnerable to symlink traversal resulting in arbitrary file overwrite
Priority LOW 36CWE-59Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.
Summary
Syncthing version 0.14.33 and older is vulnerable to symlink traversal resulting in arbitrary file overwrite
Why it matters now
EPSS 0.01509 74th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/syncthing/syncthing (Go) | up to 0.14.33 | — | No fix listed | GHSA-28xp-g7f6-7mhf |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/syncthing/syncthing (Go) Vendor— Affected up to 0.14.33 Fixed in — No fix listed GHSA-28xp-g7f6-7mhf
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-1000420
- 2026-10-03 Alias added: GHSA-28xp-g7f6-7mhf
References
More Syncthing vulnerabilities
- TI-2022-22809 Cross-site Scripting (XSS) in Web GUI in syncthing CVSS 3.1MEDIUM 5.4
- TI-2021-04502 Crash due to malformed relay protocol message CVSS 3.1HIGH 7.5
Sources
- CVE-2017-1000420 · CVE Program
- CVE-2017-1000420 · NVD
- FIRST EPSS
- GHSA-28xp-g7f6-7mhf · GitHub Advisory Database · CC BY 4.0
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