CVE-2026-84646
Quick assessment
Affected
Jenkins Project Jenkins
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.
Jenkins是Jenkins组织开源的一款持续集成与持续交付的自动化服务器。 Jenkins 2.579及之前版本和LTS 2.568.2及之前版本存在反序列化注入漏洞，该漏洞源于反序列化XML对象时用户对象可作为其他对象的嵌套字段值出现，导致具有Overall/Read权限的攻击者通过提交特制XML创建用户对象。
Possible ATT&CK Techniques 2 AI
T1105 · Ingress Tool Transfer T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Jenkins Project | Jenkins | 2.580< * |
unaffected |
2.568.3< 2.568.* |
unaffected |
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I. Basic Information for CVE-2026-84646
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other deserialized XML objects, allowing attackers with Overall/Read permission to create user objects by submitting crafted XML.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Jenkins 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jenkins是Jenkins组织开源的一款持续集成与持续交付的自动化服务器。 Jenkins 2.579及之前版本和LTS 2.568.2及之前版本存在反序列化注入漏洞，该漏洞源于反序列化XML对象时用户对象可作为其他对象的嵌套字段值出现，导致具有Overall/Read权限的攻击者通过提交特制XML创建用户对象。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Jenkins Project | Jenkins | 2.580 ~ * | - |
|
II. Public POCs for CVE-2026-84646
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Jenkins Project · 2026-09-02 · 33 CVEs total
| CVE-2026-84661 | Jenkins Pipeline: Build Step Plugin 授权问题漏洞 | |
| CVE-2026-84645 | Jenkins 输入验证错误漏洞 | |
| CVE-2026-84647 | Jenkins 反序列化注入漏洞 | |
| CVE-2026-84648 | Jenkins 跨站脚本漏洞 | |
| CVE-2026-84650 | Jenkins 反序列化注入漏洞 | |
| CVE-2026-84649 | Jenkins 跨站请求伪造漏洞 | |
| CVE-2026-84651 | Jenkins 权限许可和访问控制问题漏洞 | |
| CVE-2026-84653 | Jenkins 安全漏洞 | |
| CVE-2026-84652 | Jenkins 安全漏洞 | |
| CVE-2026-84654 | Jenkins 输入验证错误漏洞 | |
| CVE-2026-84655 | Jenkins 输出处理不当漏洞 | |
| CVE-2026-84656 | Jenkins 授权问题漏洞 | |
| CVE-2026-84657 | Jenkins 授权问题漏洞 | |
| CVE-2026-84658 | Jenkins Script Security Plugin 信息泄露漏洞 | |
| CVE-2026-84660 | Jenkins Pipeline: Build Step Plugin 授权问题漏洞 | |
| CVE-2026-84659 | Jenkins Script Security Plugin 授权问题漏洞 | |
| CVE-2026-84677 | Jenkins update-center2 跨站脚本漏洞 | |
| CVE-2026-84662 | Jenkins LDAP Plugin 输入验证错误漏洞 | |
| CVE-2026-84663 | Jenkins Pipeline: Groovy Libraries Plugin 跨站请求伪造漏洞 | |
| CVE-2026-84665 | Jenkins SonarQube Scanner Plugin 跨站脚本漏洞 |
Showing top 20 of 33 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-84646
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