CVE-2026-74835
inets,httpd: Memory Exhaustion via Unenforced max_body_size During Chunked Body Reception
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, OTP 28.5.0.6, and OTP 29.0.6, corresponding to inets from 5.10 before 9.3.2.7, 9.6.2.3, and 9.7.2. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: EEFFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: EEFFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: EEFAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| OTP Erlang otp
software-id |
≥ 17.0; < * (affected, otp); unaffected at 27.3.4.17; unaffected at 28.5.0.6; unaffected at 29.0.6
Other versions: unknown |
CNA: EEF |
| OTP Erlang inets
otp |
≥ 5.10; < * (affected, otp); unaffected at 9.3.2.7; unaffected at 9.6.2.3; unaffected at 9.7.2
Other versions: unknown |
CNA: EEF |
| OTP Erlang erlang/otp
github |
≥ 84adefa331c4159d432d22840663c38f155cd4c1; < * (affected, git); unaffected at 0bceff0c2987cae83d9d4a77c5ecacd6d01b8b86; unaffected at 8e1ca42b64df6c41306affbe8dc129bdbd4042c7; unaffected at 7f9c460d1818c2afb78fbd01f8d8b81343bbb011 ≥ 0bceff0c2987cae83d9d4a77c5ecacd6d01b8b86; < * (unaffected, git) ≥ 8e1ca42b64df6c41306affbe8dc129bdbd4042c7; < * (unaffected, git) ≥ 7f9c460d1818c2afb78fbd01f8d8b81343bbb011; < * (unaffected, git) Other versions: unknown |
CNA: EEF |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.7 high |
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 | CNA: EEF |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/erlang/otp/security/advisories/GHSA-8qrh-x566-5xv5CNA: EEF · vendor-advisory
- https://cna.erlef.org/cves/CVE-2026-74835.htmlCNA: EEF · related
- https://osv.dev/vulnerability/EEF-CVE-2026-74835CNA: EEF · related
- https://www.erlang.org/doc/system/versions.html#order-of-versionsCNA: EEF · x_version-scheme
- https://github.com/erlang/otp/commit/0bceff0c2987cae83d9d4a77c5ecacd6d01b8b86CNA: EEF · patch
- https://github.com/erlang/otp/commit/8e1ca42b64df6c41306affbe8dc129bdbd4042c7CNA: EEF · patch
- https://github.com/erlang/otp/commit/7f9c460d1818c2afb78fbd01f8d8b81343bbb011CNA: EEF · patch
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