CVE-2026-112336— Wazuh Manager 3.0.0 before 4.14.9 Memory Leak DoS via JSON Decoder

Quick assessment

Affected

wazuh wazuh

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wazuh Manager 3.0.0 至 4.14.9 之前的版本中，通用 JSON 解码器存在内存泄漏漏洞。远程攻击者可通过重复发送包含静态字段的数据，耗尽 wazuh-analysisd 进程的内存。攻击者可利用无密码注册机制接入代理，并发送包含重复字段（如 id）的事件，从而触发内存不足（OOM）杀进程机制，导致告警功能失效。

CVSS 6.5 · Medium Updated Nov 06, 2026

Possible ATT&CK Techniques 1 AI

T1499.001 · OS Exhaustion Flood

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Vulnerability Information

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Vulnerability Title

Wazuh Manager 3.0.0 before 4.14.9 Memory Leak DoS via JSON Decoder

Source: CVE Program / CVE List V5

Vulnerability Description

Wazuh Manager from 3.0.0 before 4.14.9 contains a memory leak vulnerability in the generic JSON decoder that allows remote attackers to exhaust wazuh-analysisd memory via repeated static fields. Attackers can enroll an agent through passwordless enrollment and send events with duplicate fields such as id, triggering an OOM kill that disables alerting.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

在移除最后引用时对内存的释放不恰当(内存泄露)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
wazuh	wazuh	3.0.0 ~ 4.14.9	-

II. Public POCs for CVE-2026-112336

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-112336

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Other References for CVE-2026-112336 (5)

https://github.com/wazuh/wazuh/commit/c7df52ee8158577e7bd830e2b84d024612561f8b patch
https://github.com/wazuh/wazuh/commit/7fdd928228fa0478814277ab3e49bda9809cd50a patch
https://github.com/wazuh/wazuh/releases/tag/v4.14.9 release-notes
https://github.com/wazuh/wazuh/security/advisories/GHSA-6w6h-fwqm-6hjj vendor-advisory
https://www.vulncheck.com/advisories/wazuh-manager-3.0.0-before-4.14.9-memory-leak-dos-via-json-decoder third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-112336

Same Patch Batch · wazuh · 2026-11-06 · 8 CVEs total

CVE-2026-112340	8.2 HIGH	Wazuh 4.9.0 before 4.14.9 Authorization Header Override via /api/request
CVE-2026-112341	6.5 MEDIUM	Wazuh before 4.14.9 SQL Injection via WazuhDBBackend _substitute_params
CVE-2026-112338	5.9 MEDIUM	Wazuh from 4.3.0 before 4.14.9 SSRF via GitHub Module Link Pagination
CVE-2026-112339	5.9 MEDIUM	Wazuh 3.9.0 before 4.14.9 Missing TLS Hostname Verification in fluent-forward Module
CVE-2026-112335	5.5 MEDIUM	Wazuh Agent 1.0.0 before 4.14.9 Stack Buffer Overflow via read_snortfull
CVE-2026-112334	4.9 MEDIUM	Wazuh 1.0.0 before 4.14.9 Out-of-Bounds Write in wazuh-execd via ar.conf
CVE-2026-112337	3.7 LOW	Wazuh 3.7.0 before 4.14.9 SSRF via Azure Graph nextLink Pagination

IV. Related Vulnerabilities

Same product: wazuh

Same vendor: wazuh

Same weakness: CWE-401