CVE-2026-66922— Pivotick 输入验证错误漏洞
一分钟漏洞结论
影响对象
pivotick pivotick
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Pivotick Pivotick是Pivotick组织开源的一款企业应用软件。 Pivotick 1.4.0及之前版本存在输入验证错误漏洞，该漏洞源于tree-layout和cycle-detection组件使用普通JavaScript对象作为查找表，节点标识符与Object.prototype属性冲突，导致原型污染，并可能引发客户端拒绝服务。
可能的 ATT&CK 技术 1 AI
T1059 · Command and Scripting Interpreter
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一、 漏洞 CVE-2026-66922 基础信息
漏洞信息
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Vulnerability Title
Pivotick Prototype-Key Collision in Tree Layout and Cycle Detection Allows Graph Manipulation and Denial of Service
来源: CVE Program / CVE List V5
Vulnerability Description
Pivotick used plain JavaScript objects as lookup tables indexed by caller-controlled graph node identifiers in its tree-layout and cycle-detection components.
Node identifiers matching properties inherited from Object.prototype, such as constructor, toString, or __proto__, were not handled as ordinary identifiers. These values could be interpreted as existing inherited properties, resolve to values of an unexpected type, or—in the case of __proto__ assignments—modify the prototype of an internal lookup object.
An attacker who can supply graph data containing crafted node identifiers could consequently cause nodes or edges to be silently omitted, produce incorrect hierarchy levels, bypass or corrupt cycle-detection results, or trigger an exception that interrupts graph processing and rendering. This affects the integrity of graph visualisations and analytics and may cause a client-side denial-of-service condition.
The affected code also failed to safely handle edges whose source node was absent from the supplied node set. Furthermore, calculating the maximum tree depth by spreading all level values into Math.max() could exceed the JavaScript function-argument limit when processing a sufficiently large graph, resulting in an exception and denial of service.
The patch replaces identifier-keyed plain objects with Map instances, ignores invalid edges during tree construction, and calculates the maximum depth iteratively.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
来源: CVE Program / CVE List V5
Vulnerability Title
Pivotick 输入验证错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Pivotick Pivotick是Pivotick组织开源的一款企业应用软件。 Pivotick 1.4.0及之前版本存在输入验证错误漏洞，该漏洞源于tree-layout和cycle-detection组件使用普通JavaScript对象作为查找表，节点标识符与Object.prototype属性冲突，导致原型污染，并可能引发客户端拒绝服务。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2026-66922 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-66922 补丁与修复 (1)
同批安全公告 · pivotick · 2026-07-28 · 共 7 条
| CVE-2026-67174 | 9.2 CRITICAL | Pivotick 跨站脚本漏洞 |
| CVE-2026-66918 | 8.2 HIGH | Pivotick 跨站脚本漏洞 |
| CVE-2026-66920 | 8.2 HIGH | Pivotick 资源管理错误漏洞 |
| CVE-2026-66919 | 6.9 MEDIUM | Pivotick 跨站脚本漏洞 |
| CVE-2026-66921 | 6.3 MEDIUM | Pivotick 跨站脚本漏洞 |
| CVE-2026-67173 | 5.1 MEDIUM | Pivotick 服务端请求伪造漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-66922
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