Versions of keystone prior to 0.3.16 are affected by a partial authentication bypass vulnerability. In the default sign in functionality, if an attacker provides a full and correct password, yet only provides part of the associated email address, authentication will be granted.

Recommendation

Update to version 0.3.16 or later.

References

• https://nvd.nist.gov/vuln/detail/CVE-2015-9240
• GHSA-39pj-gq8q-9pfj
• https://www.npmjs.com/advisories/60
• https://www.npmjs.com/package/keystone