CVE-2026-3089 (GCVE-0-2026-3089)
Vulnerability from cvelistv5 – Published: 2026-03-09 14:08 – Updated: 2026-03-09 14:54
VLAI
EPSS
VEX
Title
Actual Sync Server 26.2.1 - Authenticated Path Traversal
Summary
Actual Sync Server allows authenticated users to upload files through POST /sync/upload-user-file. In versions prior to 26.3.0, improper validation of the user-controlled x-actual-file-id header means that traversal segments (../) can escape the intended directory and write files outside userFiles.This issue affects prior versions of Actual Sync Server 26.3.0.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-09 14:54 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
Fluid Attacks
CNA
References
3 references
| URL | Tags |
|---|---|
| https://fluidattacks.com/advisories/fugue | third-party-advisory |
| https://github.com/actualbudget/actual | product |
| https://github.com/actualbudget/actual/pull/7067 | patch |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Actual | Actual Sync Server |
Affected:
26.2.1
cpe:2.3:a:actual:actual_sync_server:26.2.1:*:windows:*:*:*:*:* cpe:2.3:a:actual:actual_sync_server:26.2.1:*:macos:*:*:*:*:* cpe:2.3:a:actual:actual_sync_server:26.2.1:*:linux:*:*:*:*:* |
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