No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.
Description
Picsou is a self-hosted personal finance dashboard. In the affected login implementation, the `/api/auth/login` endpoint reveals whether a username exists through a timing discrepancy. In `backend/src/main/java/com/picsou/controller/AuthController.java`, `AuthController.login()` throws `BadCredentialsException` immediately for an unknown username, before `passwordEncoder.matches(...)`, whereas an existing username with an incorrect password incurs the `bcrypt` comparison cost. Both cases return the same generic `HTTP 401` response, but repeated latency measurements disclose valid usernames without credentials. Login rate limiting, a small user population, and deployments inaccessible from outside the local network limit practical exposure; the weakness does not itself read or modify account data, though enumerated usernames can assist credential stuffing or brute-force attacks. This issue is fixed in repository release 1.0.8.
Exploits & detection
No public PoC or detection template found yet.
Timeline
- Published: 30 Oct 2026
- Last modified upstream: 06 Nov 2026
Sources & licenses
- CVE / CVSS / CWE
- NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
- Exploitation
- CISA KEV (CC0) · EPSS by FIRST.org
- References used for the analysis
- https://github.com/Cloeille/picsou-finance/commit/877ac0f7c651612e15f0dbac5de8e96d66bbcf59
- https://github.com/Cloeille/picsou-finance/releases/tag/1.0.8
- https://github.com/Cloeille/picsou-finance/security/advisories/GHSA-ww5m-pxgq-8qq6
- https://github.com/Cloeille/picsou-finance/security/advisories/GHSA-ww5m-pxgq-8qq6
- Analysis, summary and remediation
- © VulnCrest