CVE-2026-74835: CWE-770 Allocation of Resources Without Limits or Throttling in Erlang OTP
Description
CVE-2026-74835 is a high-severity vulnerability in the Erlang OTP inets HTTP server where the configured body-size limit on chunked HTTP requests is not enforced. This flaw allows resource exhaustion due to allocation without limits or throttling. The issue affects multiple OTP and inets versions and has a CVSS 4.0 base score of 8.7. The vulnerability is fixed in OTP versions 27.3.4.17, 28.5.0.6, 29.0.6 and inets versions 9.3.2.7, 9.6.2.3, and 9.7.2. No known exploits are reported in the wild.
CVSS v4.0
Score 8.7high
Affected software
Erlang
OTP
Erlang
OTP
Erlang
OTP
pkg:github/inetscpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-74835 is a vulnerability classified as CWE-770 (Allocation of Resources Without Limits or Throttling) in the Erlang OTP inets HTTP server (httpd). The flaw arises because the configured body-size limit on chunked HTTP requests is not enforced, potentially allowing an attacker to cause resource exhaustion by sending large or unlimited chunked requests. This affects multiple versions of Erlang OTP and the inets library. The vulnerability has a high severity with a CVSS 4.0 base score of 8.7. The issue is addressed in OTP versions 27.3.4.17, 28.5.0.6, and 29.0.6 and corresponding inets versions 9.3.2.7, 9.6.2.3, and 9.7.2. No active exploitation has been reported.
Potential Impact
The vulnerability allows an attacker to bypass the configured body-size limit on chunked HTTP requests, which can lead to resource exhaustion on the affected server. This can degrade service availability or cause denial of service conditions. There are no reports of exploitation in the wild at this time.
Mitigation Recommendations
A fix is available and users should upgrade to OTP versions 27.3.4.17, 28.5.0.6, or 29.0.6 and the corresponding inets versions 9.3.2.7, 9.6.2.3, or 9.7.2. Consult the official Erlang vendor advisory for detailed remediation instructions. Patch status is confirmed by the vendor-provided fixed versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- EEF
- Date Reserved
- 2026-08-17T12:30:01.524Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a96e6ebacd9273b49d71636
Added to database: 09/01/2026, 14:53:31 UTC
Last enriched: 09/29/2026, 04:50:23 UTC
Last updated: 10/15/2026, 18:48:23 UTC
Views: 80
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