CVE-2026-73276
inets, httpd: HTTP Request Smuggling via Whitespace-Before-Colon Header Dropping i
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, OTP 28.5.0.6, and OTP 29.0.6, corresponding to inets from 7.1.2 before 9.3.2.7, 9.6.2.3, and 9.7.2.
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 |
≥ 22.2; < * (affected, otp); unaffected at 27.3.4.17; unaffected at 28.5.0.6; unaffected at 29.0.6
Other versions: unaffected |
CNA: EEF |
| OTP Erlang inets
otp |
≥ 7.1.2; < * (affected, otp); unaffected at 9.3.2.7; unaffected at 9.6.2.3; unaffected at 9.7.2
Other versions: unaffected |
CNA: EEF |
| OTP Erlang erlang/otp
github |
≥ c06db0bedf49a9b40725745e73fa82e562612815; < * (affected, git); unaffected at 60add5a19e2154560fdff3fe92dba14a68bbd683; unaffected at 6cd995e34d3bb3d36dd278dded2d62c25e71820c; unaffected at c285240c6e4b93960c5dc4f17ba04e6fdfb27a0f
Other versions: unaffected |
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 / 8.3 high |
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 | 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-6v7q-jwgh-cx8pCNA: EEF · vendor-advisory
- https://cna.erlef.org/cves/CVE-2026-73276.htmlCNA: EEF · related
- https://osv.dev/vulnerability/EEF-CVE-2026-73276CNA: EEF · related
- https://www.erlang.org/doc/system/versions.html#order-of-versionsCNA: EEF · x_version-scheme
- https://github.com/erlang/otp/commit/c06db0bedf49a9b40725745e73fa82e562612815CNA: EEF · related
- https://github.com/erlang/otp/commit/60add5a19e2154560fdff3fe92dba14a68bbd683CNA: EEF · patch
- https://github.com/erlang/otp/commit/6cd995e34d3bb3d36dd278dded2d62c25e71820cCNA: EEF · patch
- https://github.com/erlang/otp/commit/c285240c6e4b93960c5dc4f17ba04e6fdfb27a0fCNA: EEF · patch
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