What is CVE-2026-33318?

CVE-2026-33318 is a high-severity vulnerability in Actualbudget Actual, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-04-24.

How severe is CVE-2026-33318?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Actualbudget Actual

CVE-2026-33318

Actual is a local-first personal finance tool. Prior to version 26.4.0, any authenticated user (including `BASIC` role) can escalate to `ADMIN` on servers migrated from password authentication to OpenID Connect. Three weaknesses combine: `…

EPSS: 0.005 (37.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Actualbudget Actual — versions < 26.4.0

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
security-advisories@github.com (x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-33318?: CVE-2026-33318 is a high-severity vulnerability in Actualbudget Actual, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-04-24.
How severe is CVE-2026-33318?: High severity. CVSS v3 base score is 8.8 out of 10.