CVE-2026-73276

EUVD-2026-69233
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.
HTTP Request/Response Smuggling
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
EEFCNA
8.3 HIGH
NETWORK
LOW
NONE
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
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
erlangotp
22.2 ≤
𝑥
< 27.3.4.17
CNA
erlangotp
28.0 ≤
𝑥
< 28.5.0.6
CNA
erlangotp
29.0 ≤
𝑥
< 29.0.6
CNA
erlangotp
7.1.2 ≤
𝑥
< 9.3.2.7
CNA
erlangotp
9.4 ≤
𝑥
< 9.6.2.3
CNA
erlangotp
9.7 ≤
𝑥
< 9.7.2
CNA
Common Weakness Enumeration
References
https://cna.erlef.org/cves/CVE-2026-73276.html
https://github.com/erlang/otp/commit/60add5a19e2154560fdff3fe92dba14a68bbd683
https://github.com/erlang/otp/commit/6cd995e34d3bb3d36dd278dded2d62c25e71820c
https://github.com/erlang/otp/commit/c285240c6e4b93960c5dc4f17ba04e6fdfb27a0f
https://github.com/erlang/otp/security/advisories/GHSA-6v7q-jwgh-cx8p
https://osv.dev/vulnerability/EEF-CVE-2026-73276