CVE-2026-33318
Actual is a local-first personal finance tool.
Published Apr 24, 2026 · corrected/updated Jun 17, 2026 · actualbudget actual · evidence confidence medium
Actual is a local-first personal finance tool. Prior to version 26.4.0, any authenticated user (including role) can escalate to on servers migrated from password authentication to OpenID Connect. Three weaknesses combine: has no authorization check, allowing any session to overwrite the password hash; the inactive password row is never removed on migration; and the login endpoint accepts a client-supplied that bypasses the server's active auth configuration. Together these allow an attacker to set a known password and authenticate as the anonymous admin account created during the multiuser migration. The three weaknesses form a single, sequential exploit chain — none produces privilege escalation on its own. Missing authorization on POST /change-password allows overwriting a password hash, but only matters if there is an orphaned row to target. Orphaned password row persisting after migration provides the target row, but is harmless without the ability to authenticate using it. Client-controlled loginMethod: "password" allows forcing password-based auth, but is useless without a known hash established by step 1. All three must be chained in sequence to achieve the impact. No single weakness independently results in privilege escalation. The single root cause is the missing authorization check on /change-password; the other two are preconditions that make it exploitable. Version 26.4.0 contains a fix.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-33318 is a high public vulnerability record for actualbudget actual. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether actualbudget actual is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: actualbudget/actual. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 8.8. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-284, CWE-862. Sources contributing to this record: cve_org, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Apr 24, 2026 · NIST NVD
Detected
Actual is a local-first personal finance tool. Prior to version 26.4.0, any authenticated user (including role) can escalate to on servers migrated from password authentication to OpenID Connect. Three weaknesses combine: has no authorization check, allowing any session to overwrite the password hash; the inactive password row is never removed on migration; and the login endpoint accepts a client-
Jun 17, 2026 · NIST NVD
Updated
Actual is a local-first personal finance tool. Prior to version 26.4.0, any authenticated user (including role) can escalate to on servers migrated from password authentication to OpenID Connect. Three weaknesses combine: has no authorization check, allowing any session to overwrite the password hash; the inactive password row is never removed on migration; and the login endpoint accepts a client-
Affected
- cpe actualbudget/actualversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-33318
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-33318
Actual is a local-first personal finance tool. Prior to version 26.4.0, any authenticated user (including role) can escalate to on servers migrated from password authentication to OpenID Connect. Three weaknesses combine: has no aut
nvd.nist.gov