CVE-2026-71380Public exploitNetwork attack vectorHinoki check available

Service interruption via stalled request bodies

Published Sep 1, 2026 · Updated Sep 1, 2026

Resource exhaustion in Erlang/OTP inets httpd allows remote attackers to interrupt service by stalling incomplete request bodies. After parsing headers, httpd_request_handler:handle_info/2 cancels the request timeout, and the need-more-data path re-arms the socket without a new timer. Default deployments without minimum_bytes_per_second leave each worker waiting indefinitely, allowing low-bandwidth connections to consume all max_clients slots.

CVSS severity8.7
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Resource exhaustion in Erlang/OTP inets httpd allows remote attackers to interrupt service by stalling incomplete request bodies. After parsing headers, httpd_request_handler:handle_info/2 cancels the request timeout, and the need-more-data path re-arms the socket without a new timer. Default deployments without minimum_bytes_per_second leave each worker waiting indefinitely, allowing low-bandwidth connections to consume all max_clients slots.

The record

CVE
CVE-2026-71380
Published
Sep 1, 2026
Updated
Sep 1, 2026
Vendor
Erlang
Product
Erlang/OTP
Classifications
CWE-772, CAPEC-469, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=17.0 <27.3.4.17
  2. Affected versionversion=28.0 <28.5.0.6
  3. Affected versionversion=29.0 <29.0.6
  4. Affected versionversion=5.10 <9.3.2.7
  5. Affected versionversion=84adefa331c4159d432d22840663c38f155cd4c1 <81b453aac5a006bb8d26405f2bc3cf24e9d7733c
  6. Affected versionversion=9.4 <9.6.2.3
  7. Affected versionversion=9.7 <9.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Erlang · Erlang/OTPversion=17.0 <27.3.4.17; version=28.0 <28.5.0.6; version=29.0 <29.0.6; version=5.10 <9.3.2.7; version=84adefa331c4159d432d22840663c38f155cd4c1 <81b453aac5a006bb8d26405f2bc3cf24e9d7733c; version=9.4 <9.6.2.3; version=9.7 <9.7.2

Published CVSS scores

8.7Erlang Ecosystem FoundationCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-772Missing Release of Resource after Effective Lifetime
CAPEC-469HTTP DoS
T1499.003Application Exhaustion Flood

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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