Description Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.60 and 9.6.0-alpha.54, an attacker who obtains a user's password and a single MFA recovery code can reuse that recovery code an unlimited number of times by sending concurrent login requests. This defeats the single-use design of recovery codes. The attack requires the user's password, a valid recovery code, and the ability to send concurrent requests within milliseconds. This issue has been patched in versions 8.6.60 and 9.6.0-alpha.54.
A vulnerability in Parse Server allowing for the reuse of multi-factor authentication (MFA) recovery codes has been identified. This issue affects Parse Server versions prior to 8.6.60 and 9.6.0-alpha.54. The vulnerability arises because an attacker who obtains a user's password and a single MFA recovery code can misuse that code an unlimited number of times by sending concurrent login requests. This exploitation undermines the intended single-use functionality of recovery codes. The attack requires the user's password, a valid recovery code, and the capability to send multiple requests simultaneously within a short timeframe.
Users can upgrade to Parse Server versions 8.6.60 or 9.6.0-alpha.54, where this vulnerability has been patched.
Show AI summary Metrics CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0 SSVC
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 25, 2026 Exploitation: NoneAutomatable: NoTechnical Impact: Partial
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Weakness Enumeration Affected Products Product Versions parseplatform parse-server < 8.6.60
>= 9.0.0, < 9.6.0
9.6.0 alpha1
9.6.0 alpha10
9.6.0 alpha11
9.6.0 alpha12
9.6.0 alpha13
9.6.0 alpha14
9.6.0 alpha15
9.6.0 alpha16
9.6.0 alpha17
9.6.0 alpha18
9.6.0 alpha19
9.6.0 alpha2
9.6.0 alpha20
9.6.0 alpha21
9.6.0 alpha22
9.6.0 alpha23
9.6.0 alpha24
9.6.0 alpha25
9.6.0 alpha26
9.6.0 alpha27
9.6.0 alpha28
9.6.0 alpha29
9.6.0 alpha3
9.6.0 alpha30
9.6.0 alpha31
9.6.0 alpha32
9.6.0 alpha33
9.6.0 alpha34
9.6.0 alpha35
9.6.0 alpha36
9.6.0 alpha37
9.6.0 alpha38
9.6.0 alpha39
9.6.0 alpha4
9.6.0 alpha40
9.6.0 alpha41
9.6.0 alpha42
9.6.0 alpha43
9.6.0 alpha44
9.6.0 alpha45
9.6.0 alpha46
9.6.0 alpha47
9.6.0 alpha48
9.6.0 alpha49
9.6.0 alpha5
9.6.0 alpha50
9.6.0 alpha51
9.6.0 alpha52
9.6.0 alpha53
9.6.0 alpha6
9.6.0 alpha7
9.6.0 alpha8
9.6.0 alpha9
Viewing 5 of 55 versions. View all CPE cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha1:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha10:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha11:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha12:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha13:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha14:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha15:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha16:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha17:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha18:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha19:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha2:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha20:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha21:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha22:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha23:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha24:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha25:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha26:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha27:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha28:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha29:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha3:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha30:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha31:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha32:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha33:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha34:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha35:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha36:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha37:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha38:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha39:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha4:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha40:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha41:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha42:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha43:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha44:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha45:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha46:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha47:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha48:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha49:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha5:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha50:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha51:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha52:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha53:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha6:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha7:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha8:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha9:*:*:*:node.js:*:* Remediation No remediation found in references.
Change History 4 change records found show changes