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1 vulnerability found for picsou-finance by Zoeille

CVE-2026-62860 (GCVE-0-2026-62860)
Vulnerability from cvelistv5
Published
2026-10-30 20:40
Modified
2026-10-30 20:40
CWE
  • CWE-208 - Observable Timing Discrepancy
Summary
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.
Impacted products
Vendor Product Version
Zoeille picsou-finance Version: < 1.0.8
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Show details on NVD website


{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "picsou-finance",
          "vendor": "Zoeille",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.8"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-208",
              "description": "CWE-208: Observable Timing Discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T20:40:46.993Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Cloeille/picsou-finance/security/advisories/GHSA-ww5m-pxgq-8qq6",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Cloeille/picsou-finance/security/advisories/GHSA-ww5m-pxgq-8qq6"
        },
        {
          "name": "https://github.com/Cloeille/picsou-finance/commit/877ac0f7c651612e15f0dbac5de8e96d66bbcf59",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Cloeille/picsou-finance/commit/877ac0f7c651612e15f0dbac5de8e96d66bbcf59"
        },
        {
          "name": "https://github.com/Cloeille/picsou-finance/releases/tag/1.0.8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Cloeille/picsou-finance/releases/tag/1.0.8"
        }
      ],
      "source": {
        "advisory": "GHSA-ww5m-pxgq-8qq6",
        "discovery": "UNKNOWN"
      },
      "title": "Picsou vulnerable to login timing attack"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-62860",
    "datePublished": "2026-10-30T20:40:46.993Z",
    "dateReserved": "2026-07-14T21:10:50.032Z",
    "dateUpdated": "2026-10-30T20:40:46.993Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}