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CVE-2026-70616— boringproxy 0.10.0 Resource Exhaustion DoS via GET /loading endpoint

Quick assessment

Affected
boringproxy boringproxy
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

boringproxy是boringproxy组织的一款代理服务器类中间件。 boringproxy 0.10.0及之前版本存在竞争条件问题漏洞，该漏洞源于对GET /loading端点中id查询参数的处理不当，未进行有效的map-lookup有效性检查，并在nil channel上永久阻塞且无超时和上下文取消，导致任意认证用户可永久耗尽服务器文件描述符、goroutines和内存，最终造成拒绝服务。

CVSS 6.5 · Medium EPSS 0.34% · P25

Affected Version Matrix 1

VendorProduct Version RangeStatus
boringproxy boringproxy ≤ 0.10.0 affected
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I. Basic Information for CVE-2026-70616

Vulnerability Information
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Vulnerability Title
boringproxy 0.10.0 Resource Exhaustion DoS via GET /loading endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
boringproxy through 0.10.0 contains a resource exhaustion vulnerability that allows any authenticated user to permanently exhaust server file descriptors, goroutines, and memory by sending requests to the GET /loading endpoint with attacker-supplied id query parameter values. Because the handler performs no map-lookup validity check and receives on a nil channel that blocks forever, with no timeout, no context cancellation, and no server-side reclamation due to absent HTTP server timeouts, each malicious request permanently holds one goroutine, one file descriptor, and approximately 50 kB of memory until the server's file descriptor limit is reached and listener Accept calls fail, halting all tunnel traffic forwarding for all users.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
死锁
Source: CVE Program / CVE List V5
Vulnerability Title
boringproxy 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
boringproxy是boringproxy组织的一款代理服务器类中间件。 boringproxy 0.10.0及之前版本存在竞争条件问题漏洞，该漏洞源于对GET /loading端点中id查询参数的处理不当，未进行有效的map-lookup有效性检查，并在nil channel上永久阻塞且无超时和上下文取消，导致任意认证用户可永久耗尽服务器文件描述符、goroutines和内存，最终造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
boringproxy boringproxy 0 ~ 0.10.0 -

II. Public POCs for CVE-2026-70616

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III. Intelligence Information for CVE-2026-70616

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Vendor Advisories for CVE-2026-70616 (1)

Proof of Concept for CVE-2026-70616 (1)

IV. Related Vulnerabilities

Same product: boringproxy
Same vendor: boringproxy
Same weakness: CWE-833

V. Comments for CVE-2026-70616

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