sqlmapproject/sqlmap · error · SqlmapSyntaxException

proxy authentication credentials value must be in format use

Error message

proxy authentication credentials value must be in format username:password

What it means

Error "proxy authentication credentials value must be in format username:password" thrown in sqlmapproject/sqlmap.

Source

Thrown at lib/core/option.py:1296

            hostname = hostnamePort[0]
            port = None

            if len(hostnamePort) == 2:
                try:
                    port = int(hostnamePort[1])
                except:
                    pass  # drops into the next check block

            if not all((scheme, hasattr(PROXY_TYPE, scheme), hostname, port)):
                errMsg = "proxy value must be in format '(%s)://address:port'" % "|".join(_[0].lower() for _ in getPublicTypeMembers(PROXY_TYPE))
                raise SqlmapSyntaxException(errMsg)

            if conf.proxyCred:
                _ = re.search(r"\A(.*?):(.*?)\Z", conf.proxyCred)
                if not _:
                    errMsg = "proxy authentication credentials "
                    errMsg += "value must be in format username:password"
                    raise SqlmapSyntaxException(errMsg)
                else:
                    username = _.group(1)
                    password = _.group(2)

            if scheme in (PROXY_TYPE.SOCKS4, PROXY_TYPE.SOCKS5):
                proxyHandler.proxies = {}

                if scheme == PROXY_TYPE.SOCKS4:
                    warnMsg = "SOCKS4 does not support resolving (DNS) names (i.e. causing DNS leakage)"
                    singleTimeWarnMessage(warnMsg)

                socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5 if scheme == PROXY_TYPE.SOCKS5 else socks.PROXY_TYPE_SOCKS4, hostname, port, username=username, password=password)
                socks.wrapmodule(_http_client)
            else:
                socks.unwrapmodule(_http_client)

                if conf.proxyCred:
                    # Reference: http://stackoverflow.com/questions/34079/how-to-specify-an-authenticated-proxy-for-a-python-http-connection

View on GitHub (pinned to 0a35b20e39)

When it happens

Trigger: Thrown at lib/core/option.py:1296 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Authentication and authorization failures — expired tokens, bad credentials, and missing scopes.

AI-assisted analysis of sqlmapproject/sqlmap@0a35b20e39 (2026-08-26). Data as JSON: /api/errors/935ae1a1014e173e. Report an issue: GitHub.