There are no known workarounds.ĭiscourse is an open source discussion platform. The problem is patched in version 2.8.9 on the `stable` branch and version 2.9.0.beta10 on the `beta` and `tests-passed` branches. In versions prior to 2.8.9 on the `stable` branch and prior to 2.9.0.beta10 on the `beta` and `tests-passed` branches, a moderator can create new and edit existing themes by using the API when they should not be able to do so. A fix to limit the length of user input for these fields is included in version 2.8.9 on the `stable` branch and version 2.9.0.beta10 on the `beta` and `tests-passed` branches.

In versions prior to 2.8.9 on the `stable` branch and prior to 2.9.0.beta10 on the `beta` and `tests-passed` branches, a malicious actor can add large payloads of text into the Location and Website fields of a user profile, which causes issues for other users when loading that profile. If you cannot upgrade, disabling SAML authentication may be done as a workaround.ĭiscourse is an open source discussion platform. The issue was also present in the beta releases of `node-saml` before version 4.0.0-beta.5. Users should upgrade to passport-saml version 3.2.2 or newer. Depending on the IDP used, fully unauthenticated attacks (e.g without access to a valid user) might also be feasible if generation of a signed message can be triggered. A successful attack requires that the attacker is in possession of an arbitrary IDP signed XML element. A remote attacker may be able to bypass SAML authentication on a website using passport-saml. Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request. Tenda AC1900 AP500(US)_V1_180320(Beta) was discovered to contain a buffer overflow in the 0x32384 function.

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