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High RHSA-2026:97877 3 CVEs

Red Hat Security Advisory: delve security, bug fix, and enhancement update

Published Nov 13, 2026 · Updated Nov 13, 2026

Ecosystem: Red Hat

Fixed packages 3

ReleasePackageFixed in
Red Hat · RHEL 9 enterprise_linux:9::appstream delve 0:1.27.2-2.el9_9
Red Hat · RHEL 9 enterprise_linux:9::appstream delve-debuginfo 0:1.27.2-2.el9_9
Red Hat · RHEL 9 enterprise_linux:9::appstream delve-debugsource 0:1.27.2-2.el9_9

Vulnerabilities 3

  • High 7.5
    CVE-2026-56862

    Limit handshake messages we are willing to accept post-handshake in crypto/tls

    Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key deriva…

    Go standard library crypto/tls golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  • High 7.5
    CVE-2026-97031

    Reject malformed ECH outer extension references in crypto/tls

    Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and …

    Go standard library crypto/tls golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  • Medium 6.8
    CVE-2026-111943 Public exploit

    Distrust compromised intermediate certificates in crypto/x509

    On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denylist was added in cr…

    Go standard library crypto/x509 golang go Debian Ubuntu Azure Linux Alpine Wolfi Go crates.io

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2515839
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2548336
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2556068
  • article
    https://issues.redhat.com/browse/RHEL-219306
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_97877.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-56862
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-56862
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-56862
  • article
    https://go.dev/cl/804261
  • article
    https://go.dev/issue/80528
  • article
    https://groups.google.com/g/golang-announce/c/94pEornpRlI
  • advisory
    https://pkg.go.dev/vuln/GO-2026-6090
  • report
    https://access.redhat.com/security/cve/CVE-2026-97031
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-97031
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-97031
  • article
    https://go.dev/cl/847312
  • article
    https://go.dev/issue/81855
  • article
    https://groups.google.com/g/golang-announce/c/U2fTuyDJznI
  • advisory
    https://pkg.go.dev/vuln/GO-2026-6607
  • report
    https://access.redhat.com/security/cve/CVE-2026-111943
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2026-012
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-111943
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-111943
  • article
    https://github.com/golang/go/issues/82345
  • article
    https://groups.google.com/g/golang-nuts/c/K22sG2AYnKU
  • advisory
    https://pkg.go.dev/vuln/GO-2026-6809