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CVE-2026-74836— Mat Trudel Bandit 资源管理错误漏洞

一分钟漏洞结论

影响对象
mtrudel bandit
利用判断
存在公开或 AI PoC,应优先验证
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。

Mat Trudel Bandit是Mat Trudel个人开发者的一款代码安全分析工具。 Mat Trudel Bandit 0.3.4版本至1.12.5之前版本存在资源管理错误漏洞,该漏洞源于连接级流量控制中资源分配无限制,可能导致未经身份验证的远程攻击者无限固定HTTP/2流进程,造成拒绝服务。

CVSS 8.7 · High EPSS 0.67% · P50

影响版本矩阵 2

厂商产品 版本范围状态
mtrudel bandit 0.3.4< 1.12.5 affected
6feadb31189d18b7dcda6c663112cd3bbaf63a46< f6914aad14bb1365dd6f306aa592cfb0819bed3e affected
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一、 漏洞 CVE-2026-74836 基础信息

漏洞信息

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Vulnerability Title
HTTP/2 connection-window starvation pins Plug processes indefinitely in Bandit
来源: CVE Program / CVE List V5
Vulnerability Description
Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows an unauthenticated remote attacker to pin an unbounded number of HTTP/2 stream processes indefinitely via connection-level flow control. When a stream's response body outruns the HTTP/2 connection-level send window (default 65,535 bytes, shared across all streams on the connection), Bandit.HTTP2.Connection queues the remaining bytes and a reply closure in pending_sends and the stream process blocks forever inside a synchronous call to the connection process. Nothing bounds that wait and nothing purges the queue: a client RST_STREAM for the blocked stream is delivered to its mailbox but never read while it is stuck inside the call, so cancelling frees nothing, and periodic PING frames keep the transport-level read timeout from ever firing. The equivalent block on the stream-level send window is already bounded at 15 seconds; the connection-level path had no such bound. Each stalled stream pins its process, Plug state, and any resource the Plug holds across the blocked write, such as a pooled upstream connection in a reverse-proxy Plug. The attacker chooses any endpoint whose response exceeds the connection window (common for most non-trivial payloads), grants a generous stream-level window so only the connection window limits it, and keeps the connection alive with periodic PINGs; the primitive is repeatable across streams and connections at the cost of one idle socket each. This issue affects bandit: from 0.3.4 before 1.12.5.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
来源: CVE Program / CVE List V5
Vulnerability Title
Mat Trudel Bandit 资源管理错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Mat Trudel Bandit是Mat Trudel个人开发者的一款代码安全分析工具。 Mat Trudel Bandit 0.3.4版本至1.12.5之前版本存在资源管理错误漏洞,该漏洞源于连接级流量控制中资源分配无限制,可能导致未经身份验证的远程攻击者无限固定HTTP/2流进程,造成拒绝服务。
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

厂商 产品 影响版本 CPE 订阅
mtrudel bandit 0.3.4 ~ 1.12.5 cpe:2.3:a:mtrudel:bandit:*:*:*:*:*:*:*:*
mtrudel bandit 6feadb31189d18b7dcda6c663112cd3bbaf63a46 ~ f6914aad14bb1365dd6f306aa592cfb0819bed3e cpe:2.3:a:mtrudel:bandit:*:*:*:*:*:*:*:*

二、漏洞 CVE-2026-74836 的公开POC

# POC 描述 源链接 神龙链接
AI 生成 POC 高级
Qwen3.6-35B-A3B · 7152 chars
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完整可执行 POC 代码
利用链与缓解建议
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三、漏洞 CVE-2026-74836 的情报信息

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CVE-2026-74836 补丁与修复 (1)

CVE-2026-74836 厂商安全公告 (3)

IV. Related Vulnerabilities

V. Comments for CVE-2026-74836

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