CVE-2026-97705
HIGH
MEDIUM
Priority: 0.03
BB Relevance:
75/100
Published: 2026-11-04
Modified: 2026-11-12
First seen: 2026-11-04
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
Moleculer is a progressive microservices framework for Node.js. Prior to 0.14.36 and 0.15.2, Parser._write in src/transporters/tcp/parser.js used Buffer.prototype.readInt32BE to read a signed packet length, so a remote unauthenticated peer could supply a negative value that caused packet.slice(length) to return the unchanged buffer while the while (packet.length > 0) loop continued indefinitely. The synchronous loop blocked the Node.js event loop and made every service in the process unresponsive until restart. The TCP transporter must be enabled and reachable, and neither CRC validation nor maxPacketSize prevents the malformed length value. This issue is fixed in versions 0.14.36 and 0.15.2.
Weakness Classification (1)
Affected Software (4)
| Vendor | Product | Version |
|---|---|---|
| moleculerjs | moleculer | >= 0.15.0, < 0.15.2 |
| moleculerjs | moleculer | < 0.14.36 |
| moleculerjs | moleculer | >= 0.15.0, < 0.15.2 |
| moleculerjs | moleculer | < 0.14.36 |
References & Advisories (5)
x_refsource_MISC
x_refsource_MISC
x_refsource_MISC
x_refsource_MISC
x_refsource_CONFIRM