sqlmapproject/sqlmap · error · SqlmapNoneDataException

unable to continue in offline mode because of lack of usable

Error message

unable to continue in offline mode because of lack of usable session data

What it means

Error "unable to continue in offline mode because of lack of usable session data" thrown in sqlmapproject/sqlmap.

Source

Thrown at lib/core/target.py:557

                    kb.injections.append(injection)
                    kb.vulnHosts.add(conf.hostname)

    _resumeDBMS()
    _resumeOS()

def _resumeDBMS():
    """
    Resume stored DBMS information from HashDB
    """

    value = hashDBRetrieve(HASHDB_KEYS.DBMS)

    if not value:
        if conf.offline:
            errMsg = "unable to continue in offline mode "
            errMsg += "because of lack of usable "
            errMsg += "session data"
            raise SqlmapNoneDataException(errMsg)
        else:
            return

    dbms = value.lower()
    dbmsVersion = [UNKNOWN_DBMS_VERSION]
    _ = "(%s)" % ('|'.join(SUPPORTED_DBMS))
    _ = re.search(r"\A%s (.*)" % _, dbms, re.I)

    if _:
        dbms = _.group(1).lower()
        dbmsVersion = [_.group(2)]

    if conf.dbms:
        check = True
        for aliases, _, _, _ in DBMS_DICT.values():
            if conf.dbms.lower() in aliases and dbms not in aliases:
                check = False
                break

View on GitHub (pinned to 0a35b20e39)

When it happens

Trigger: Thrown at lib/core/target.py:557 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/4cf243e817229562. Report an issue: GitHub.