CVE-2026-61916— Apache bRPC 越界读取漏洞
一分钟漏洞结论
影响对象
Apache Software Foundation Apache bRPC
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。
在 Apache bRPC 1.18.0 之前的版本中，若运行在普通 类型为无符号的平台（例如 ARM64）上，URL 解析和大小写不敏感的请求头查找功能存在越界读取漏洞。远程攻击者可通过发送包含高位字节（high-bit bytes，即字节值在 0x80–0xFF 范围）的恶意构造输入，触发进程崩溃，从而导致拒绝服务（DoS）。 根本原因： 系统使用了两张各含 256 个条目的查找表，并通过将指针偏移 128 来访问，使得有效索引范围为 -128 到 127。输入字节在转换为 类型前未先归一化到有符号 的范围。在
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一、 漏洞 CVE-2026-61916 基础信息
漏洞信息
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Vulnerability Title
Apache bRPC: Out-of-bounds Read in URL and Header Lookup Tables on Unsigned-char Platforms
来源: CVE Program / CVE List V5
Vulnerability Description
Out-of-bounds reads in URL parsing and case-insensitive header lookup in Apache bRPC before version 1.18.0 on platforms where plain char is unsigned, such as ARM64, allow remote attackers to cause a process crash and denial of service by sending crafted input containing bytes with the high bit set.
Root Cause:
Two 256-entry lookup tables are accessed through pointers biased by 128 so that valid indices are in the range -128 to 127. Input bytes are promoted from plain char to int without first normalizing them to the signed-char range. On affected platforms, bytes in the range 0x80 to 0xFF therefore become indices 128 to 255 and read up to 127 bytes beyond the end of the underlying tables.
Affected Scenarios:
A remotely accessible bRPC HTTP server on an affected platform can reach the vulnerable URL lookup through an unauthenticated request URI containing a high-bit byte. The case-insensitive lookup is also reachable when untrusted header names are processed through APIs such as the HTTP/2 HPACK path. HTTP/1 header names containing high-bit bytes are rejected by the HTTP/1 parser before reaching the vulnerable lookup. Builds where plain char is signed, which commonly include x86_64 builds, are not affected by this issue.
How to Fix:
Choose one of the following options:
1. Upgrade Apache bRPC to version 1.18.0 or later.
2. Apply the patch from https://github.com/apache/brpc/pull/3376 .
The fix normalizes lookup-table indices to the signed-char range before accessing the biased tables.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Apache Software Foundation | Apache bRPC | 0 ~ 1.18.0 | - |
|
二、漏洞 CVE-2026-61916 的公开POC
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CVE-2026-61916 其他参考 (1)
同批安全公告 · Apache Software Foundation · 2026-10-21 · 共 39 条
| CVE-2026-56386 | Apache bRPC HTTP/2 解析器整数下溢与越界读取漏洞 | |
| CVE-2026-78048 | Apache bRPC HPACK 解码器远程拒绝服务漏洞 | |
| CVE-2026-74758 | Apache bRPC RTMP 消息处理堆释放后使用漏洞 | |
| CVE-2026-74757 | Apache bRPC 因恶意 mcpack 数组计数导致内存分配失控漏洞 | |
| CVE-2026-74755 | Apache bRPC mcpack2pb 整数下溢导致拒绝服务漏洞 | |
| CVE-2026-66392 | Apache bRPC TLS 客户端证书域名不匹配漏洞 | |
| CVE-2026-61902 | Apache bRPC 消息体限制不一致内存耗尽漏洞 | |
| CVE-2026-58064 | Apache bRPC Redis 命令分配拒绝服务漏洞 | |
| CVE-2026-56388 | Apache bRPC Redis 命令解析器越界写漏洞 | |
| CVE-2026-56387 | Apache bRPC RTMP AMF 解析器远程内存耗尽漏洞 | |
| CVE-2026-78058 | Apache bRPC HTTP/2 资源耗尽与崩溃漏洞 | |
| CVE-2026-54427 | Apache bRPC AMF 解析器无限递归栈耗尽漏洞 | |
| CVE-2026-54426 | Apache bRPC Redis 解析器栈耗尽漏洞 | |
| CVE-2026-54425 | Apache bRPC HPACK 动态表大小更新解码栈耗尽漏洞 | |
| CVE-2026-48830 | Apache bRPC 认证绕过漏洞 | |
| CVE-2026-59229 | Apache IoTDB 管道权限提升漏洞 | |
| CVE-2026-59562 | Apache IoTDB 远程代码执行及路径遍历漏洞 | |
| CVE-2026-41114 | Apache IoTDB JDBC 驱动 BigDecimal 内存耗尽漏洞 | |
| CVE-2026-58663 | Apache IoTDB 管道传输接口认证绕过漏洞 | |
| CVE-2026-82425 | Apache bRPC Socket::OnInputEvent 远程拒绝服务漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2026-61916
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