sqlmapproject/sqlmap · error · SqlmapUnsupportedDBMSException

you provided an unsupported back-end database management sys

Error message

you provided an unsupported back-end database management system. Supported DBMSes are as follows: %s. If you do not know the back-end DBMS, do not provide it and sqlmap will fingerprint it for you.

What it means

Error "you provided an unsupported back-end database management system. Supported DBMSes are as follows: %s. If you do not know the back-end DBMS, do not provide it and sqlmap will fingerprint it for you." thrown in sqlmapproject/sqlmap.

Source

Thrown at lib/core/option.py:825

    if not conf.dbms:
        return

    debugMsg = "forcing back-end DBMS to user defined value"
    logger.debug(debugMsg)

    conf.dbms = conf.dbms.lower()
    regex = re.search(r"%s ([\d\.]+)" % ("(%s)" % "|".join(SUPPORTED_DBMS)), conf.dbms, re.I)

    if regex:
        conf.dbms = regex.group(1)
        Backend.setVersion(regex.group(2))

    if conf.dbms not in SUPPORTED_DBMS:
        errMsg = "you provided an unsupported back-end database management "
        errMsg += "system. Supported DBMSes are as follows: %s. " % ', '.join(sorted((_ for _ in (list(DBMS_DICT) + getPublicTypeMembers(FORK, True))), key=str.lower))
        errMsg += "If you do not know the back-end DBMS, do not provide "
        errMsg += "it and sqlmap will fingerprint it for you."
        raise SqlmapUnsupportedDBMSException(errMsg)

    for dbms, aliases in DBMS_ALIASES:
        if conf.dbms in aliases:
            conf.dbms = dbms

            break

def _listTamperingFunctions():
    """
    Lists available tamper functions
    """

    if conf.listTampers:
        infoMsg = "listing available tamper scripts\n"
        logger.info(infoMsg)

        for script in sorted(glob.glob(os.path.join(paths.SQLMAP_TAMPER_PATH, "*.py"))):
            with openFile(script, 'r') as f:

View on GitHub (pinned to 0a35b20e39)

When it happens

Trigger: Thrown at lib/core/option.py:825 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of sqlmapproject/sqlmap@0a35b20e39 (2026-08-26). Data as JSON: /api/errors/1d5631d6cfa62826. Report an issue: GitHub.