CVE-2021-36161

Unprotected input value toString cause RCE

CRITICAL
9.8
CVSS Score
Published: September 9, 2021 at 07:45 AM UTC
Updated: June 17, 2026 at 03:58 AM UTC
1 product affected across 1 vendorDubbo

Using Apache Dubbo by Apache Software Foundation?

Get instant alerts when new vulnerabilities affect Apache Dubbo - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

Some component in Dubbo will try to print the formated string of the input arguments, which will possibly cause RCE for a maliciously customized bean with special toString method. In the latest version, we fix the toString call in timeout, cache and some other places. Fixed in Apache Dubbo 2.7.13

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.7.0 ≤ v < 2.7.13Apache Dubbo 2.7.x ≤ v ≤ 2.7.122.7.x
Affected range stops below 2.7.13, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-134

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card