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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-103399

CVE-2026-103399: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityMedium5.3

    Medium [CVE-2026-103399] HTTP/1 request smuggling via undrained Expect: 100-continue body

    CVE-2026-103399Source published Source updated

    HTTP/1 request smuggling via undrained Expect: 100-continue body. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-444. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 6 more.

    Related products — impact not confirmed
    • Red Hat Enterprise Linux 10
    • Red Hat Enterprise Linux 6
    • Red Hat Enterprise Linux 7
    • Red Hat Enterprise Linux 8

    6 more entries in the full advisory.

    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Workarounds
    • To mitigate this do not expose SoupServer to untrusted networks; prefer terminating proxies or internal-only listeners. If SoupServer must sit behind a reverse proxy, disable backend connection reuse/pooling across clients so an undrained body cannot prepend to another client's request.

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