inets, httpd: HTTP Request Smuggling via Whitespace-Before-Colon Header Dropping i (Erlang OTP)

CVE-2026-73276

HIGH 8.3

At a glance

Source: NVD
EPSS: EPSS 0.58 % · percentile 47 (2026-10-29)
State: PUBLISHED
Published: 2026-09-01 14:41 UTC
Updated: 2026-09-08 01:10 UTC
Assigner: EEF
NVD status: Deferred

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Description

Gracefulness code ignored cases that should be rejected, resulting in possible HTTP Request Smuggling opportunities. This issue affects OTP from OTP 22.2 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 7.1.2 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2.

Weaknesses (CWE)

CWE-444 — Inconsistent Interpretation of HTTP Requests

References

Scores

Version	Score	Vector	Scored by
CVSS 4.0	HIGH 8.3	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N	EEF
CVSS 4.0	HIGH 8.3	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/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	NVD · 6b3ad84c-e1a6-4bf7-a703-f496b71e49db (Secondary)

European references

ENISA EUVD · EUVD-2026-69233
GCVE · GCVE-0-2026-73276

Affected products

Product	Versions
Erlang · OTP	affected 22.2 < 27.3.4.17 ; affected 28.0 < 28.5.0.6 ; affected 29.0 < 29.0.6
Erlang · OTP	affected 7.1.2 < 9.3.2.7 ; affected 9.4 < 9.6.2.3 ; affected 9.7 < 9.7.2
Erlang · OTP	affected c06db0bedf49a9b40725745e73fa82e562612815 < *

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD

⚠️ inets, httpd: HTTP Request Smuggling via Whitespace-Before-Colon Header Dropping i (Erlang OTP)