CVE-2025-4727

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Source
https://cve.org/CVERecord?id=CVE-2025-4727
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-4727.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-4727
Aliases
Published
2025-05-15T23:15:59.470Z
Modified
2026-04-10T05:29:19.091172Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

A vulnerability was found in Meteor up to 3.2.1 and classified as problematic. This issue affects the function Object.assign of the file packages/ddp-server/livedata_server.js. The manipulation of the argument forwardedFor leads to inefficient regular expression complexity. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.2.2 is able to address this issue. The identifier of the patch is f7ea6817b90952baaea9baace2a3b4366fee6a63. It is recommended to upgrade the affected component.

References

Affected packages

Git / github.com/meteor/meteor

Affected ranges

Type
GIT
Repo
https://github.com/meteor/meteor
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
fdc3c89b87bc90bcdd480d6b3fad977491f6fed6
Fixed
f7ea6817b90952baaea9baace2a3b4366fee6a63
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.2.2"
        }
    ]
}

Affected versions

Other
note
note2
test-build
test1
release/METEOR@2.*
release/METEOR@2.3.2
release/METEOR@2.6.1
release/METEOR@2.6.1-beta.4
v0.*
v0.0.40
v0.0.41
v0.0.43
v0.0.44
v0.1.1
v0.1.2
v0.1.3
v0.1.4
v0.2.0
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.4.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-4727.json"