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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade libsoupUpgrade libsoup-debugsourceUpgrade libsoup-debuginfoUpgrade libsoup-develUpgrade libsoup-doc | Oct 13, 2026 | Jul 24, 2026 |
| Redhat_linux | — | No solution exists | Jul 27, 2026 | Jun 5, 2026 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub