CVE-2026-82405— Klever-Go kleverUpdateAccountPermission账户接管漏洞
一分钟漏洞结论
影响对象
klever-io klever-go
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。
Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the KleverUpdateAccountPermission built-in authorizes replacement of a target account's permissions by checking attacker-controlled vmInput.RecipientAddr instead of authenti
可能的 ATT&CK 技术 1 AI
T1190 · Exploit Public-Facing Application
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2026-82405 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Klever-Go Account takeover: `kleverUpdateAccountPermission` authorizes on attacker-controlled `RecipientAddr` instead of the authenticated caller
来源: CVE Program / CVE List V5
Vulnerability Description
Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the KleverUpdateAccountPermission built-in authorizes replacement of a target account's permissions by checking attacker-controlled vmInput.RecipientAddr instead of authenticated vmInput.CallerAddr. An attacker-controlled contract can choose a victim account with configured permissions as RecipientAddr, and contractHasValidPermission can accept the victim's default self-signer as authorization. UpdatePermission can then replace the victim's entire permission set with attacker-supplied Owner permissions, enabling asset theft or permanent lockout without a victim key or signature. Accounts without stored permissions and the native transaction path are not affected. This issue is fixed in version 1.7.20.
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
授权机制不正确
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-82405 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2026-82405 的情报信息
请登录查看更多情报信息。
CVE-2026-82405 其他参考 (4)
同批安全公告 · klever-io · 2026-09-23 · 共 6 条
| CVE-2026-86064 | 8.6 HIGH | Klever-Go /log 全局日志控制漏洞 |
| CVE-2026-82409 | 8.4 HIGH | Klever-Go Elasticsearch 批量注入漏洞 |
| CVE-2026-86065 | 7.5 HIGH | Klever-Go 远程节点拒绝服务漏洞 |
| CVE-2026-82406 | 7.1 HIGH | Klever-Go 僵尸订单窃取漏洞 |
| CVE-2026-82407 | 7.0 HIGH | Klever-Go 验证者注册未验证BLS公钥致拒绝服务 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-82405
暂无评论