CVE-2026-74835— inets,httpd: Memory Exhaustion via Unenforced max_body_size During Chunked Body Reception
Quick assessment
Affected
Erlang OTP
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.
inets 应用的 HTTP 服务器 httpd 未能对分块（chunked）请求强制应用已配置的身体大小限制。 此问题影响以下版本范围： OTP 17.0 至 OTP 27.3.4.17 之前的版本； OTP 28.0 至 OTP 28.5.0.6 之前的版本； OTP 29.0 至 OTP 29.0.6 之前的版本。 对应于 inets 的版本范围为： inets 5.10 至 9.3.2.7 之前的版本； inets 9.4 至 9.6.2.3 之前的版本； inets 9.7 至 9.7.2 之前的版本。
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-74835
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
inets,httpd: Memory Exhaustion via Unenforced max_body_size During Chunked Body Reception
Source: CVE Program / CVE List V5
Vulnerability Description
The inets application HTTP server httpd fails to enforce a configured body-size limit on chunked request.
This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.
Source: 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
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-74835
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-74835
请登录查看更多情报信息。
Other References for CVE-2026-74835 (6)
Same Patch Batch · Erlang · 2026-09-01 · 16 CVEs total
| CVE-2026-71380 | 8.7 HIGH | httpd applies no timeout while receiving a request body, parking a worker on a stalled cli |
| CVE-2026-70399 | 8.7 HIGH | httpd does not enforce the documented default max_clients connection limit |
| CVE-2026-69664 | 8.7 HIGH | httpd parks a request worker indefinitely on a malformed chunk size sent after the headers |
| CVE-2026-66357 | 8.3 HIGH | inets,httpd:HTTP Request Smuggling via obs-fold Header Continuation |
| CVE-2026-73812 | 8.3 HIGH | inets, httpd: HTTP Request Smuggling via Transfer-Encoding and Content-Length |
| CVE-2026-73276 | 8.3 HIGH | inets, httpd: HTTP Request Smuggling via Whitespace-Before-Colon Header Dropping i |
| CVE-2026-55951 | 8.2 HIGH | httpc memory exhaustion via unbounded response header accumulation |
| CVE-2026-75538 | 8.2 HIGH | A Signed Length Overflow in Erlang/OTP's inet TCP Driver Overflows the Receive Buffer Into |
| CVE-2026-66835 | 8.2 HIGH | httpd mod_auth directory protection bypassed by a doubled slash in the request path |
| CVE-2026-73270 | 8.2 HIGH | httpd mod_auth directory protection bypassed by request path casing on case-insensitive fi |
| CVE-2026-59696 | 6.9 MEDIUM | uri_string does not bound the port component of a URI before integer conversion |
| CVE-2026-71562 | 6.3 MEDIUM | httpc does not bound server-supplied numeric header values before integer conversion |
| CVE-2026-70405 | 6.3 MEDIUM | snmp BER INTEGER decoder applies no size limit to attacker-supplied integer fields |
| CVE-2026-70409 | 6.3 MEDIUM | eldap does not bound the port component of a referral URL before integer conversion |
| CVE-2026-74994 | 6.0 MEDIUM | inets, httpd: Authentication Bypass via Directory Namespace Collapse in httpd mod_auth |
IV. Related Vulnerabilities
Same product: OTP
-
CVE-2026-69664
httpd parks a request worker indefinitely on a malformed chu -
CVE-2026-70409
eldap does not bound the port component of a referral URL be -
CVE-2026-70405
snmp BER INTEGER decoder applies no size limit to attacker-s -
CVE-2026-66835
httpd mod_auth directory protection bypassed by a doubled sl -
CVE-2026-73270
httpd mod_auth directory protection bypassed by request path
Same vendor: Erlang
-
CVE-2026-69664
httpd parks a request worker indefinitely on a malformed chu -
CVE-2026-70409
eldap does not bound the port component of a referral URL be -
CVE-2026-70405
snmp BER INTEGER decoder applies no size limit to attacker-s -
CVE-2026-66835
httpd mod_auth directory protection bypassed by a doubled sl -
CVE-2026-73270
httpd mod_auth directory protection bypassed by request path
Same weakness: CWE-770
-
CVE-2026-83615
xmldom: Quadratic-memory consumption -
CVE-2026-55951
httpc memory exhaustion via unbounded response header accumu -
CVE-2026-70399
httpd does not enforce the documented default max_clients co -
CVE-2024-10085
OPC UA平台资源无限制分配致服务拒绝 -
CVE-2026-19472
Rockwell Automation ArmorStart® LT Denial Of Service
V. Comments for CVE-2026-74835
No comments yet