CVE-2026-56733— Zammad 错误授权与权限管理漏洞
一分钟漏洞结论
影响对象
zammad zammad
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。
Zammad 是一款基于 Web 的开源帮助台/客户支持系统。在 7.0.2 和 7.1.0 版本之前，该漏洞涉及授权级联过程中缺乏充分的验证机制。研究表明，系统在初始化新身份对象时对访问限制的系统级强制执行存在差异：在特定条件下，当前使用的访问密钥所对应的细粒度权限限制会被父账户的潜在授权权限所覆盖。这意味着预期的功能区域隔离被彻底破坏，导致管理权限的失控扩展。由于这一潜在的整体信任环境完整性遭到破坏，必须立即对授权层级进行评估。 影响 攻击者可以绕过令牌限制创建新的管理员账户，从而获得对所有系统数据（包括工单、
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一、 漏洞 CVE-2026-56733 基础信息
漏洞信息
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Vulnerability Title
Zammad: Incorrect Authorization and Improper Privilege Management
来源: CVE Program / CVE List V5
Vulnerability Description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2 and 7.1.0, this issue concerns a lack of discursive validation within the authorization cascade. It has been determined that the system-level enforcement of access restrictions during the initialization of new identity objects exhibits a discrepancy: Under specific conditions, the granular restrictions of the access key being used are overridden by the latent authorization authority of the parent account. Consequently, this means that the intended separation of functional areas is nullified, resulting in an uncontrolled expansion of administrative discretion. Due to this potential integrity breach of the entire trust environment, an immediate evaluation of the authorization hierarchies is imperative. Impact An attacker can create new administrator accounts despite token restrictions. This grants full access to all system data (tickets, customers, configuration) and allows the attacker to take complete control of the Zammad instance. Abuse Scenario The vulnerability stems from a lack of synergy between the token-based authorization logic and the target system's functional authorization hierarchy, which allows for iterative escalation of the privileged access context. This issue is fixed in versions 7.0.2 and 7.1.0.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-56733 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
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CVE-2026-56733 其他参考 (5)
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https://github.com/zammad/zammad/releases/tag/7.0.2 x_refsource_MISC
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https://github.com/zammad/zammad/releases/tag/7.1.0 x_refsource_MISC
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https://github.com/zammad/zammad/security/advisories/GHSA-p3mg-2jxr-hww2 x_refsource_CONFIRM
同批安全公告 · zammad · 2026-09-25 · 共 30 条
| CVE-2026-84458 | 9.1 CRITICAL | Zammad SSO自动关联时未验证邮箱导致账户接管漏洞 |
| CVE-2026-61525 | 8.8 HIGH | Zammad 长轮询控制器未验证会话标识导致任意文件删除漏洞 |
| CVE-2026-56725 | 8.7 HIGH | Zammad OTRS导入控制器拒绝服务漏洞 |
| CVE-2026-84462 | 8.6 HIGH | Zammad AI Agent模板清理器绕过导致远程代码执行漏洞 |
| CVE-2026-56731 | 8.4 HIGH | Zammad 工单通知跨站脚本漏洞 |
| CVE-2026-56724 | 7.1 HIGH | Zammad 知识库模块权限检查错误漏洞 |
| CVE-2026-84465 | 7.1 HIGH | Zammad S/MIME签名验证存在伪造发件人漏洞 |
| CVE-2026-84464 | 7.1 HIGH | Zammad 外部数据源渲染 IDOR 漏洞 |
| CVE-2026-56727 | 7.1 HIGH | Zammad PGP签名伪造漏洞 |
| CVE-2026-56723 | 7.1 HIGH | Zammad 工单附件下载缺少授权验证漏洞 |
| CVE-2026-63207 | 6.9 MEDIUM | Zammad 集成管理 API 敏感信息泄露漏洞 |
| CVE-2026-84461 | 6.9 MEDIUM | Zammad：两因素登录期间密码暴力破解漏洞 |
| CVE-2026-84463 | 6.3 MEDIUM | Zammad 知识库视频组件存储型HTML注入漏洞 |
| CVE-2026-56735 | 5.3 MEDIUM | Zammad IMG标签srcset属性未正确处理的漏洞 |
| CVE-2026-63206 | 5.3 MEDIUM | Zammad 通过缩短URL方案绕过远程图片追踪漏洞 |
| CVE-2026-56728 | 5.3 MEDIUM | Zammad 跨用户任务栏项访问控制漏洞 |
| CVE-2026-56734 | 5.3 MEDIUM | Zammad 头像图片 URL SSRF漏洞 |
| CVE-2026-56732 | 5.3 MEDIUM | Zammad 工单正文恶意输入导致会话终止漏洞 |
| CVE-2026-84460 | 5.3 MEDIUM | Zammad 标签列表缺少授权，导致跨对象标签枚举漏洞 |
| CVE-2026-61855 | 5.3 MEDIUM | Zammad 入站邮件无效 PGP 签名误报漏洞 |
显示前 20 条，共 30 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-56733
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