CVE-2026-71380 Affecting erlang package, versions <1:24.2.1+dfsg-1ubuntu0.7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2204-ERLANG-19519237
- published23 Sept 2026
- disclosed1 Sept 2026
Introduced: 1 Sep 2026
CVE-2026-71380 (opens in a new tab)How to fix?
Upgrade Ubuntu:22.04 erlang to version 1:24.2.1+dfsg-1ubuntu0.7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream erlang package and not the erlang package as distributed by Ubuntu.
See How to fix? for Ubuntu:22.04 relevant fixed versions and status.
Missing Release of Resource after Effective Lifetime vulnerability in Erlang/OTP inets httpd allows an unauthenticated remote attacker to cause denial of service by sending valid request headers with a large Content-Length and then stalling before the body is complete.
httpd_request_handler:handle_info/2 cancels the request timeout as soon as a parse step succeeds, which includes the headers, and the clause that handles a decoder asking for more data re-arms the socket with {active, once} without setting any further timer. httpd_request:whole_body/2 returns such a continuation whenever the bytes received are fewer than the announced Content-Length, so a well-formed request that stops mid-body leaves the worker waiting indefinitely. The periodic byte-rate check that would reclaim it is armed only when minimum_bytes_per_second is configured, which it is not by default. Repeating this across connections occupies every worker permitted by max_clients and denies service to legitimate clients at negligible bandwidth cost.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2026-71380
- https://cna.erlef.org/cves/CVE-2026-71380.html
- https://github.com/erlang/otp/commit/81b453aac5a006bb8d26405f2bc3cf24e9d7733c
- https://github.com/erlang/otp/security/advisories/GHSA-5vp4-58hc-h8cc
- https://osv.dev/vulnerability/EEF-CVE-2026-71380
- https://www.erlang.org/doc/system/versions.html#order-of-versions