8.3

CVE-2026-66357

Medienbericht

inets,httpd:HTTP Request Smuggling via obs-fold Header Continuation

httpd has never implemented obs-fold (RFC 2616 §2.2 / RFC 7230 §3.2.4 header continuation lines). Every CRLF followed by a non-CRLF octet unconditionally starts a new header. This missing feature became a security concern as the understanding of HTTP request smuggling attacks evolved.

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerErlang
≫
Produkt OTP
Default Statusunaffected
Version 0
Version < 17.0
Status unknown
Version 17.0
Version < 27.3.4.17
Status affected
Version 28.0
Version < 28.5.0.6
Status affected
Version 29.0
Version < 29.0.6
Status affected
HerstellerErlang
≫
Produkt OTP
Default Statusunaffected
Version 0
Version < 5.10
Status unknown
Version 5.10
Version < 9.3.2.7
Status affected
Version 9.4
Version < 9.6.2.3
Status affected
Version 9.7
Version < 9.7.2
Status affected
HerstellerErlang
≫
Produkt OTP
Default Statusunaffected
Version 84adefa331c4159d432d22840663c38f155cd4c1
Version < *
Status affected
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.33% 0.254
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
6b3ad84c-e1a6-4bf7-a703-f496b71e49db 8.3 0 0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:L/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
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

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VulnDex Intel
Media Report
08.09.2026 20:38
https://github.com/erlang/otp/security/advisories/GHSA-qh2f-33hj-37qf
https://cna.erlef.org/cves/CVE-2026-66357.html
https://osv.dev/vulnerability/EEF-CVE-2026-66357
https://github.com/erlang/otp/commit/220d618d2479a7180b4a06d0c5aacfaa4af4a85b
https://github.com/erlang/otp/commit/273d8958de38ff2a7fe0c5dcc5b6bfe6f65717f3
https://github.com/erlang/otp/commit/e640d599287d2eba919e6f13b91f042d7dbe6ff4