Vulnerability details
CVE-2026-73276
erlang OTP
inets, httpd: HTTP Request Smuggling via Whitespace-Before-Colon Header Dropping i
CVSS 4.0
8.3High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.3High | 4.0 | CVEProject cvelistV5 (CNA) (EEF) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| erlang | OTP | 22.2 ≤ v < 27.3.4.17 | CVEProject cvelistV5 (CNA) |
| erlang | OTP | 28.0 ≤ v < 28.5.0.6 | CVEProject cvelistV5 (CNA) |
| erlang | OTP | 29.0 ≤ v < 29.0.6 | CVEProject cvelistV5 (CNA) |
| erlang | OTP | 7.1.2 ≤ v < 9.3.2.7 | CVEProject cvelistV5 (CNA) |
| erlang | OTP | 9.4 ≤ v < 9.6.2.3 | CVEProject cvelistV5 (CNA) |
| erlang | OTP | 9.7 ≤ v < 9.7.2 | CVEProject cvelistV5 (CNA) |
| erlang | OTP | c06db0bedf49a9b40725745e73fa82e562612815 ≤ v | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://github.com/erlang/otp/security/advisories/GHSA-6v7q-jwgh-cx8p vendor-advisory
- https://cna.erlef.org/cves/CVE-2026-73276.html related
- https://osv.dev/vulnerability/EEF-CVE-2026-73276 related
- https://github.com/erlang/otp/commit/60add5a19e2154560fdff3fe92dba14a68bbd683 patch
- https://github.com/erlang/otp/commit/6cd995e34d3bb3d36dd278dded2d62c25e71820c patch
- https://github.com/erlang/otp/commit/c285240c6e4b93960c5dc4f17ba04e6fdfb27a0f patch
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Details
- Published
- 2026-09-01
- Last updated
- 2026-09-08
- State
- Published
- Assigner (CNA)
- EEF
Exploit prediction (EPSS)
0.57%
Probability of exploitation in 30 days
47.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')