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High RLSA-2026:19144 4 CVEs

Important: golang-github-openprinting-ipp-usb security update

Published May 29, 2026 · Updated May 29, 2026

Summary

HTTP reverse proxy, backed by IPP-over-USB connection to device. It enables
driverless support for USB devices capable of using IPP-over-USB protocol.

Security Fix(es):

* crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application (CVE-2026-33810)

* golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root (CVE-2026-32282)

* crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283)

* crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 10 golang-github-openprinting-ipp-usb 0:0.9.27-7.el10_2

Vulnerabilities 4

  • High 7.5

    Unexpected work during chain building in crypto/x509

    During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 an…

  • High 7.5

    Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls

    If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.

  • High 7.5

    Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509

    When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issu…

  • Medium 6.4

    TOCTOU permits root escape on Linux via Root.Chmod in os in internal/syscall/unix

    On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the symlink, even when the target lies outside the root. The Linux fchmodat syscall silently ignores the AT_SYMLINK_N…

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2456336
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2456339
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2456335
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2456338