Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
A flaw was found in libsoup. The chunked transfer encoding parser uses a permissive parsing function for chunk sizes that silently accepts inputs violating RFC 9112, including leading whitespace, plus sign prefixes, and trailing invalid characters. When libsoup operates behind a strict frontend proxy, this parsing differential can be exploited to smuggle HTTP requests.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
6 versions affected across 2 products
CVE-2026-66338 A flaw was found in libsoup. The chunked transfer encoding parser uses a permissive parsing function for chunk sizes that silently accepts inputs violating RFC 9112, … https://www.cve.org/CVERecord?id=CVE-2026-66338
Post summary
A new CVE for libsoup exposing a permissive chunked-transfer-encoding parser violation of RFC 9112 has been disclosed; no PoC, exploitation or patch details are provided.
🚨*CVE* CVE-2026-66338 A flaw was found in libsoup. The chunked transfer encoding parser uses a permissive parsing function for chunk sizes that silently accepts inputs violating RFC 9112, … https://www.cve.org/CVERecord?id=CVE-2026-66338 ----- Traducción: Se encontró una fa… http://infoflow.cloud`
Post summary
The text announces the discovery of CVE-2026-66338 in libsoup’s chunked transfer encoding parser, noting its permissive parsing behavior that violates RFC 9112, but provides no PoC, exploit, or patch details.
6 of 6 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | gnome | libsoup | - | - | - |
| OS | redhat | enterprise_linux | 10.0 | - | - |
| OS | redhat | enterprise_linux | 6.0 | - | - |
| OS | redhat | enterprise_linux | 7.0 | - | - |
| OS | redhat | enterprise_linux | 8.0 | - | - |
| OS | redhat | enterprise_linux | 9.0 | - | - |