inets,httpd: Memory Exhaustion via Unenforced max_body_size During Chunked Body Reception

Summary

CVECVE-2026-74835
StatePUBLISHED
AssignerEEF
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-01 15:17:25 UTC
Updated2026-09-08 01:17:54 UTC
DescriptionThe 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, 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.

Risk And Classification

Primary CVSS: v4.0 8.7 HIGH from 6b3ad84c-e1a6-4bf7-a703-f496b71e49db

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.003280000 probability, percentile 0.253800000 (date 2026-09-03)

Problem Types: CWE-770 | CWE-770 CWE-770 Allocation of Resources Without Limits or Throttling


VersionSourceTypeScoreSeverityVector
4.06b3ad84c-e1a6-4bf7-a703-f496b71e49dbSecondary8.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS8.7HIGHCVSS: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 v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Erlang OTP unknown 17.0 otp Not specified
CNA Erlang OTP affected 17.0 27.3.4.17 otp Not specified
CNA Erlang OTP affected 28.0 28.5.0.6 otp Not specified
CNA Erlang OTP affected 29.0 29.0.6 otp Not specified
CNA Erlang OTP unknown 5.10 otp Not specified
CNA Erlang OTP affected 5.10 9.3.2.7 otp Not specified
CNA Erlang OTP affected 9.4 9.6.2.3 otp Not specified
CNA Erlang OTP affected 9.7 9.7.2 otp Not specified
CNA Erlang OTP affected 84adefa331c4159d432d22840663c38f155cd4c1 * git Not specified

References

ReferenceSourceLinkTags
github.com/erlang/otp/commit/0bceff0c2987cae83d9d4a77c5ecacd6d01b8b86 6b3ad84c-e1a6-4bf7-a703-f496b71e49db github.com
github.com/erlang/otp/commit/7f9c460d1818c2afb78fbd01f8d8b81343bbb011 6b3ad84c-e1a6-4bf7-a703-f496b71e49db github.com
github.com/erlang/otp/security/advisories/GHSA-8qrh-x566-5xv5 6b3ad84c-e1a6-4bf7-a703-f496b71e49db github.com
github.com/erlang/otp/commit/8e1ca42b64df6c41306affbe8dc129bdbd4042c7 6b3ad84c-e1a6-4bf7-a703-f496b71e49db github.com
osv.dev/vulnerability/EEF-CVE-2026-74835 6b3ad84c-e1a6-4bf7-a703-f496b71e49db osv.dev
cna.erlef.org/cves/CVE-2026-74835.html 6b3ad84c-e1a6-4bf7-a703-f496b71e49db cna.erlef.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Lukas Backström / Erlang Solutions (en)

CNA: Konrad Pietrzak / Ericsson (en)

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