CVE-2022-26650

Apache ShenYu (incubating) Regular expression denial of service

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Apache ShenYui, ShenYu-Bootstrap, RegexPredicateJudge.java uses Pattern.matches(conditionData.getParamValue(), realData) to make judgments, where both parameters are controllable by the user. This can cause an attacker pass in malicious regular expressions and characters causing a resource exhaustion. This issue affects Apache ShenYu (incubating) 2.4.0, 2.4.1 and 2.4.2 and is fixed in 2.4.3.

En Apache ShenYui, ShenYu-Bootstrap, El archivo RegexPredicateJudge.java usa Pattern.matches(conditionData.getParamValue(), realData) para realizar juicios, donde ambos parámetros son controlables por el usuario. Esto puede causar que un atacante pase expresiones regulares y caracteres maliciosos causando un agotamiento de recursos. Este problema afecta a Apache ShenYu (incubando) versiones 2.4.0, 2.4.1 y 2.4.2 y está corregido en versión 2.4.3

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-03-07 CVE Reserved
2022-05-17 CVE Published
2024-08-03 CVE Updated
2025-01-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-1333: Inefficient Regular Expression Complexity

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2022/05/17/3	2023-07-12

URL	Date	SRC
https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673	2023-07-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Shenyu Search vendor "Apache" for product "Shenyu"				2.4.0 Search vendor "Apache" for product "Shenyu" and version "2.4.0"		-		Affected
Apache Search vendor "Apache"		Shenyu Search vendor "Apache" for product "Shenyu"				2.4.1 Search vendor "Apache" for product "Shenyu" and version "2.4.1"		-		Affected
Apache Search vendor "Apache"		Shenyu Search vendor "Apache" for product "Shenyu"				2.4.2 Search vendor "Apache" for product "Shenyu" and version "2.4.2"		-		Affected