{"id":"DHI-l5yc-dqar-2v4r-ktfr","summary":"Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they…","details":"Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. However, this makes it possible for our HTTP/2 implementation to forward responses containing such headers to an HTTP/1 client when acting as a reverse proxy. If the HTTP/1 client also does not behave strictly enough, this can result in response smuggling.","modified":"2026-11-10T22:15:01.996821334Z","published":"2026-11-10T22:11:23Z","upstream":["CVE-2026-78660"],"references":[{"type":"ADVISORY","url":"https://scout.docker.com/v/DHI-l5yc-dqar-2v4r-ktfr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78660"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2026-86196.html"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:86196"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-86203.html"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:86203"},{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2026-78660"},{"type":"ADVISORY","url":"https://alas.aws.amazon.com/AL2/ALAS-2026-4005.html"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-97032"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-97031"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-97030"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-94448"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-94447"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-94444"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-94440"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-94439"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-78669"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-78667"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-78663"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-78660"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-78659"},{"type":"ADVISORY","url":"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-56866"},{"type":"ADVISORY","url":"https://alas.aws.amazon.com/AL2023/ALAS-2026-3225.html"},{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-78660"},{"type":"ADVISORY","url":"https://pkg.go.dev/vuln/GO-2026-6610"},{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:86093"},{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:86196"},{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:86203"},{"type":"ADVISORY","url":"https://ubuntu.com/security/CVE-2026-78660"},{"type":"ADVISORY","url":"http://people.ubuntu.com/~ubuntu-security/cve/CVE-2026-78660"},{"type":"WEB","url":"https://github.com/golang/go/issues/81115"}],"affected":[{"package":{"name":"tailscale-dev","ecosystem":"Docker 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