GHSA-w73w-g5xw-rwhf

Suggest an improvement
Source
https://github.com/advisories/GHSA-w73w-g5xw-rwhf
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-w73w-g5xw-rwhf/GHSA-w73w-g5xw-rwhf.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-w73w-g5xw-rwhf
Aliases
Published
2026-03-29T15:23:03Z
Modified
2026-04-06T15:27:04Z
Severity
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Parse Server has an MFA single-use token bypass via concurrent authData login requests
Details

Impact

An attacker who possesses a valid authentication provider token and a single MFA recovery code or SMS one-time password can create multiple authenticated sessions by sending concurrent login requests via the authData login endpoint. This defeats the single-use guarantee of MFA recovery codes and SMS one-time passwords, allowing session persistence even after the legitimate user revokes detected sessions.

Patches

The fix adds optimistic locking to the authData login path, ensuring that concurrent database updates for the same user fail when the original MFA token array has already been modified by another request.

Workarounds

There is no known workaround.

Database specific
{
    "cwe_ids":  [
        "CWE-367"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-03-29T15:23:03Z",
    "nvd_published_at":  "2026-03-31T15:16:18Z",
    "severity":  "LOW"
}
References

Affected packages

npm / parse-server

Package

Affected ranges

Type
SEMVER
Events
Introduced
9.0.0
Fixed
9.7.0-alpha.8

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-w73w-g5xw-rwhf/GHSA-w73w-g5xw-rwhf.json"

npm / parse-server

Package

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.6.64

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-w73w-g5xw-rwhf/GHSA-w73w-g5xw-rwhf.json"