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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-3089

22
FAUCET Score

CVE-2026-3089 is an authenticated path traversal vulnerability affecting Actual Sync Server versions prior to 26.3.0. This flaw allows an authenticated attacker to upload files outside the intended `userFiles` directory by manipulating the `x-actual-file-id` header due to improper validation of traversal segments. Rated as Medium severity (CVSS 5.3), it has a low attack complexity and requires prior authentication, potentially leading to arbitrary file writes. There is no evidence of active exploitation, public exploit code, or significant community attention for this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 26.3.0CPE matchmatch criteria
cpe:2.3:a:actualbudget:actual:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 4.0

5.3MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
LOW
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 40th percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: @actual-app/sync-serverFixed in: 26.3.0

Vendor Advisories (1)

npmGHSA-27vg-33gh-4hwgmedium

Actual Sync Server has an Authenticated Path Traversal

Mar 10, 2026

References

fluidattacks.com / advisories/fugue
ExploitThird Party Advisory
github.com / actualbudget/actual
Product
github.com / actualbudget/actual/pull/7067
Issue TrackingPatch