Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-07-27 05:48

Modified

2026-07-27 06:08

Summary

OpenBao Login MFA Bypasses Rate Limiting and TOTP Token Reuse

Details

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 2.3.1 and below, OpenBao's Login Multi-Factor Authentication (MFA) system allows enforcing MFA using Time-based One Time Password (TOTP). Due to normalization applied by the underlying TOTP library, codes were accepted which could contain whitespace; this whitespace could bypass internal rate limiting of the MFA method and allow reuse of existing MFA codes. This issue was fixed in version 2.3.2. To work around this, use of rate-limiting quotas can limit an attacker's ability to exploit this: https://openbao.org/api-docs/system/rate-limit-quotas/.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "openbao",
        "purl": "pkg:bitnami/openbao"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.0-20250807113757-8340a6918f6c"
            },
            {
              "introduced": "0.0.1"
            },
            {
              "fixed": "2.3.2"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-55003"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:openbao:openbao:*:*:*:*:*:go:*:*"
    ],
    "severity": "Medium"
  },
  "details": "OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 2.3.1 and below, OpenBao\u0027s Login Multi-Factor Authentication (MFA) system allows enforcing MFA using Time-based One Time Password (TOTP). Due to normalization applied by the underlying TOTP library, codes were accepted which could contain whitespace; this whitespace could bypass internal rate limiting of the MFA method and allow reuse of existing MFA codes. This issue was fixed in version 2.3.2. To work around this, use of rate-limiting quotas can limit an attacker\u0027s ability to exploit this: https://openbao.org/api-docs/system/rate-limit-quotas/.",
  "id": "BIT-openbao-2025-55003",
  "modified": "2026-07-27T06:08:49.409Z",
  "published": "2026-07-27T05:48:57.846Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://discuss.hashicorp.com/t/hcsec-2025-19-vault-login-mfa-bypass-of-rate-limiting-and-totp-token-reuse/76038"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openbao/openbao/commit/8340a6918f6c41d8f75b6c3845c376d9dc32ed19"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openbao/openbao/security/advisories/GHSA-rxp7-9q75-vj3p"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55003"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "OpenBao Login MFA Bypasses Rate Limiting and TOTP Token Reuse"
}

CVE-2025-55003 (GCVE-0-2025-55003)

Vulnerability from cvelistv5 – Published: 2025-08-09 02:01 – Updated: 2025-08-11 14:47

Title

OpenBao Login MFA Bypasses Rate Limiting and TOTP Token Reuse

Summary

Severity

5.7 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-307 - Improper Restriction of Excessive Authentication Attempts

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/openbao/openbao/security/advis…	x_refsource_CONFIRM
https://github.com/openbao/openbao/commit/8340a69…	x_refsource_MISC
https://discuss.hashicorp.com/t/hcsec-2025-19-vau…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
openbao	openbao	Affected: < 2.3.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-55003",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-11T14:46:52.059573Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-11T14:47:04.206Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "openbao",
          "vendor": "openbao",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.3.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 2.3.1 and below, OpenBao\u0027s Login Multi-Factor Authentication (MFA) system allows enforcing MFA using Time-based One Time Password (TOTP). Due to normalization applied by the underlying TOTP library, codes were accepted which could contain whitespace; this whitespace could bypass internal rate limiting of the MFA method and allow reuse of existing MFA codes. This issue was fixed in version 2.3.2. To work around this, use of rate-limiting quotas can limit an attacker\u0027s ability to exploit this: https://openbao.org/api-docs/system/rate-limit-quotas/."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-307",
              "description": "CWE-307: Improper Restriction of Excessive Authentication Attempts",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-09T02:01:43.985Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/openbao/openbao/security/advisories/GHSA-rxp7-9q75-vj3p",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/openbao/openbao/security/advisories/GHSA-rxp7-9q75-vj3p"
        },
        {
          "name": "https://github.com/openbao/openbao/commit/8340a6918f6c41d8f75b6c3845c376d9dc32ed19",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/openbao/openbao/commit/8340a6918f6c41d8f75b6c3845c376d9dc32ed19"
        },
        {
          "name": "https://discuss.hashicorp.com/t/hcsec-2025-19-vault-login-mfa-bypass-of-rate-limiting-and-totp-token-reuse/76038",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://discuss.hashicorp.com/t/hcsec-2025-19-vault-login-mfa-bypass-of-rate-limiting-and-totp-token-reuse/76038"
        }
      ],
      "source": {
        "advisory": "GHSA-rxp7-9q75-vj3p",
        "discovery": "UNKNOWN"
      },
      "title": "OpenBao Login MFA Bypasses Rate Limiting and TOTP Token Reuse"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-55003",
    "datePublished": "2025-08-09T02:01:43.985Z",
    "dateReserved": "2025-08-04T17:34:24.421Z",
    "dateUpdated": "2025-08-11T14:47:04.206Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

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Vulnerability from bitnami_vulndb

CVE-2025-55003 (GCVE-0-2025-55003)

Tags

Sightings

Nomenclature