CLEANSTART-2026-PC79790

    Dashboard / Vulnerabilities / CLEANSTART-2026-PC79790

    CLEANSTART-2026-PC79790

    Published: 31 Oct 2026Last Modified: 31 Oct 2026
    Upstream:
    CVE-2026-78663

    Summary: HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a r...

    Details: CVE-2026-78663 affects multiple packages. The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a request handler reads the buffered data. See references for individual vulnerability details.

    References: https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-PC79790.json, https://osv.dev/vulnerability/CVE-2026-78663, https://nvd.nist.gov/vuln/detail/CVE-2026-78663

    Affected packages

    Package

    Name: caddy

    Purl: pkg:apk/cleanstart/caddy

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.11.6-r1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CLEANSTART-2026-PC79790 | CVE-DB