Missing Release of Resource after Effective Lifetime in Erlang OTP - CVE-2026-71380
Published: September 2, 2026
Vulnerability identifier: #VU146837
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2026-71380
CWE-ID: CWE-772
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to missing release of resource after effective lifetime in httpd_request_handler.erl when receiving an HTTP request body after successfully parsing headers. A remote attacker can send valid HTTP headers with a large Content-Length value, transmit a small amount of body data, and then stall the connection to cause a denial of service.
The issue affects httpd in its default configuration when minimum_bytes_per_second is false, allowing stalled connections to hold worker slots indefinitely.
Affected software
Erlang OTP
How to mitigate CVE-2026-71380
Install security update from vendor's website.
Erlang OTP - addressed in versions 17.0, 27.3.4.17, 28.5.0.6, 29.0.6