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PatchSiren cyber security CVE debrief

CVE-2026-43872 actualbudget CVE debrief

A path traversal vulnerability was discovered in Actual, an open-source personal finance application, prior to version 26.5.0. The vulnerability affects several endpoints and has been fixed in version 26.5.0.

Vendor
actualbudget
Product
actual
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-12
Original CVE updated
2026-06-12
Advisory published
2026-06-12
Advisory updated
2026-06-12

Who should care

Users of Actual open-source personal finance application versions prior to 26.5.0.

Technical summary

The vulnerability is a path traversal issue (CWE-22) with a CVSS score of 5.3 and a severity of MEDIUM. It allows an attacker to traverse the file system, potentially leading to unauthorized access to sensitive files.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update Actual to version 26.5.0 or later to fix the issue.
  • Review and monitor endpoint access to prevent potential exploitation.

Evidence notes

The CVE record was published on 2026-06-12T20:16:45.897Z and has not been modified since. The vulnerability was reported via [email protected].

Official resources

CVE-2026-43872 was published on 2026-06-12T20:16:45.897Z.