RHSA-2026:98640: Moderate: gcc-toolset-16-gcc security update

Published Nov 11, 2026
·
Updated

The gcc-toolset-16-gcc package contains the GNU Compiler Collection version 16.Security Fix(es): gcc: Integer wrap in std (CVE-2026-114691) gcc: Confirmed out-of-bounds read/write in libstdc++ parallel std (CVE-2026-114690) gcc: Stack overflow in std::bitset on libstdc++ (CVE-2026-115455) gcc: Out-of-bounds read in std::fromchars (CVE-2026-115456) 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.

Affected Software

86 affected componentsFixes available
redhat/gcc-toolset<16-gcc-16.2.1-1.4.el10_3
16-gcc-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-16.2.1-1.4.el10_3
16-gcc-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-debuginfo-16.2.1-1.4.el10_3
16-gcc-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-gfortran-16.2.1-1.4.el10_3
16-gcc-gfortran-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-gfortran-debuginfo-16.2.1-1.4.el10_3
16-gcc-gfortran-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-annobin-16.2.1-1.4.el10_3
16-gcc-plugin-annobin-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-annobin-debuginfo-16.2.1-1.4.el10_3
16-gcc-plugin-annobin-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-devel-16.2.1-1.4.el10_3
16-gcc-plugin-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-devel-debuginfo-16.2.1-1.4.el10_3
16-gcc-plugin-devel-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libasan-devel-16.2.1-1.4.el10_3
16-libasan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libatomic-devel-16.2.1-1.4.el10_3
16-libatomic-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgccjit-16.2.1-1.4.el10_3
16-libgccjit-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgccjit-debuginfo-16.2.1-1.4.el10_3
16-libgccjit-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgccjit-devel-16.2.1-1.4.el10_3
16-libgccjit-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgdiagnostics-devel-16.2.1-1.4.el10_3
16-libgdiagnostics-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libitm-devel-16.2.1-1.4.el10_3
16-libitm-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-liblsan-devel-16.2.1-1.4.el10_3
16-liblsan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libquadmath-devel-16.2.1-1.4.el10_3
16-libquadmath-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libtsan-devel-16.2.1-1.4.el10_3
16-libtsan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libubsan-devel-16.2.1-1.4.el10_3
16-libubsan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-offload-nvptx-16.2.1-1.4.el10_3
16-offload-nvptx-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-offload-nvptx-debuginfo-16.2.1-1.4.el10_3
16-offload-nvptx-debuginfo-16.2.1-1.4.el10_3
redhat/libgdiagnostics<16.2.1-1.4.el10_3
16.2.1-1.4.el10_3
redhat/libgdiagnostics-debuginfo<16.2.1-1.4.el10_3
16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-debuginfo-16.2.1-1.4.el10_3
16-gcc-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-gfortran-16.2.1-1.4.el10_3
16-gcc-gfortran-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-gfortran-debuginfo-16.2.1-1.4.el10_3
16-gcc-gfortran-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-annobin-16.2.1-1.4.el10_3
16-gcc-plugin-annobin-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-annobin-debuginfo-16.2.1-1.4.el10_3
16-gcc-plugin-annobin-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-devel-16.2.1-1.4.el10_3
16-gcc-plugin-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-devel-debuginfo-16.2.1-1.4.el10_3
16-gcc-plugin-devel-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libasan-devel-16.2.1-1.4.el10_3
16-libasan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libatomic-devel-16.2.1-1.4.el10_3
16-libatomic-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgccjit-16.2.1-1.4.el10_3
16-libgccjit-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgccjit-debuginfo-16.2.1-1.4.el10_3
16-libgccjit-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgccjit-devel-16.2.1-1.4.el10_3
16-libgccjit-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgdiagnostics-devel-16.2.1-1.4.el10_3
16-libgdiagnostics-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libitm-devel-16.2.1-1.4.el10_3
16-libitm-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-liblsan-devel-16.2.1-1.4.el10_3
16-liblsan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libtsan-devel-16.2.1-1.4.el10_3
16-libtsan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libubsan-devel-16.2.1-1.4.el10_3
16-libubsan-devel-16.2.1-1.4.el10_3
redhat/libgdiagnostics<16.2.1-1.4.el10_3
16.2.1-1.4.el10_3
redhat/libgdiagnostics-debuginfo<16.2.1-1.4.el10_3
16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-16.2.1-1.4.el10_3
16-gcc-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-debuginfo-16.2.1-1.4.el10_3
16-gcc-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-gfortran-16.2.1-1.4.el10_3
16-gcc-gfortran-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-gfortran-debuginfo-16.2.1-1.4.el10_3
16-gcc-gfortran-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-annobin-16.2.1-1.4.el10_3
16-gcc-plugin-annobin-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-annobin-debuginfo-16.2.1-1.4.el10_3
16-gcc-plugin-annobin-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-devel-16.2.1-1.4.el10_3
16-gcc-plugin-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-plugin-devel-debuginfo-16.2.1-1.4.el10_3
16-gcc-plugin-devel-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libasan-devel-16.2.1-1.4.el10_3
16-libasan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libatomic-devel-16.2.1-1.4.el10_3
16-libatomic-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgccjit-16.2.1-1.4.el10_3
16-libgccjit-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgccjit-debuginfo-16.2.1-1.4.el10_3
16-libgccjit-debuginfo-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgccjit-devel-16.2.1-1.4.el10_3
16-libgccjit-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libgdiagnostics-devel-16.2.1-1.4.el10_3
16-libgdiagnostics-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libitm-devel-16.2.1-1.4.el10_3
16-libitm-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-liblsan-devel-16.2.1-1.4.el10_3
16-liblsan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libquadmath-devel-16.2.1-1.4.el10_3
16-libquadmath-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libtsan-devel-16.2.1-1.4.el10_3
16-libtsan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-libubsan-devel-16.2.1-1.4.el10_3
16-libubsan-devel-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-offload-nvptx-16.2.1-1.4.el10_3
16-offload-nvptx-16.2.1-1.4.el10_3
redhat/gcc-toolset<16-offload-nvptx-debuginfo-16.2.1-1.4.el10_3
16-offload-nvptx-debuginfo-16.2.1-1.4.el10_3
redhat/libgdiagnostics<16.2.1-1.4.el10_3
16.2.1-1.4.el10_3
redhat/libgdiagnostics-debuginfo<16.2.1-1.4.el10_3
16.2.1-1.4.el10_3
redhat/gcc-toolset<16-gcc-16.2.1-1.4.el10_3.aa
16-gcc-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-gcc-debuginfo-16.2.1-1.4.el10_3.aa
16-gcc-debuginfo-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-gcc-gfortran-16.2.1-1.4.el10_3.aa
16-gcc-gfortran-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-gcc-gfortran-debuginfo-16.2.1-1.4.el10_3.aa
16-gcc-gfortran-debuginfo-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-gcc-plugin-annobin-16.2.1-1.4.el10_3.aa
16-gcc-plugin-annobin-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-gcc-plugin-annobin-debuginfo-16.2.1-1.4.el10_3.aa
16-gcc-plugin-annobin-debuginfo-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-gcc-plugin-devel-16.2.1-1.4.el10_3.aa
16-gcc-plugin-devel-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-gcc-plugin-devel-debuginfo-16.2.1-1.4.el10_3.aa
16-gcc-plugin-devel-debuginfo-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-libasan-devel-16.2.1-1.4.el10_3.aa
16-libasan-devel-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-libatomic-devel-16.2.1-1.4.el10_3.aa
16-libatomic-devel-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-libgccjit-16.2.1-1.4.el10_3.aa
16-libgccjit-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-libgccjit-debuginfo-16.2.1-1.4.el10_3.aa
16-libgccjit-debuginfo-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-libgccjit-devel-16.2.1-1.4.el10_3.aa
16-libgccjit-devel-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-libgdiagnostics-devel-16.2.1-1.4.el10_3.aa
16-libgdiagnostics-devel-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-libitm-devel-16.2.1-1.4.el10_3.aa
16-libitm-devel-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-liblsan-devel-16.2.1-1.4.el10_3.aa
16-liblsan-devel-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-libtsan-devel-16.2.1-1.4.el10_3.aa
16-libtsan-devel-16.2.1-1.4.el10_3.aa
redhat/gcc-toolset<16-libubsan-devel-16.2.1-1.4.el10_3.aa
16-libubsan-devel-16.2.1-1.4.el10_3.aa
redhat/libgdiagnostics<16.2.1-1.4.el10_3.aa
16.2.1-1.4.el10_3.aa
redhat/libgdiagnostics-debuginfo<16.2.1-1.4.el10_3.aa
16.2.1-1.4.el10_3.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-16.2.1-1.4.el10_3
  2. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-debuginfo-16.2.1-1.4.el10_3
  3. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-gfortran-16.2.1-1.4.el10_3
  4. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-gfortran-debuginfo-16.2.1-1.4.el10_3
  5. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-plugin-annobin-16.2.1-1.4.el10_3
  6. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-plugin-annobin-debuginfo-16.2.1-1.4.el10_3
  7. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-plugin-devel-16.2.1-1.4.el10_3
  8. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-plugin-devel-debuginfo-16.2.1-1.4.el10_3
  9. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libasan-devel-16.2.1-1.4.el10_3
  10. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libatomic-devel-16.2.1-1.4.el10_3
  11. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libgccjit-16.2.1-1.4.el10_3
  12. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libgccjit-debuginfo-16.2.1-1.4.el10_3
  13. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libgccjit-devel-16.2.1-1.4.el10_3
  14. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libgdiagnostics-devel-16.2.1-1.4.el10_3
  15. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libitm-devel-16.2.1-1.4.el10_3
  16. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-liblsan-devel-16.2.1-1.4.el10_3
  17. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libquadmath-devel-16.2.1-1.4.el10_3
  18. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libtsan-devel-16.2.1-1.4.el10_3
  19. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libubsan-devel-16.2.1-1.4.el10_3
  20. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-offload-nvptx-16.2.1-1.4.el10_3
  21. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-offload-nvptx-debuginfo-16.2.1-1.4.el10_3
  22. Upgrade

    Upgrade redhat/libgdiagnostics to a version that resolves this vulnerability.

    Fixed in 16.2.1-1.4.el10_3
  23. Upgrade

    Upgrade redhat/libgdiagnostics-debuginfo to a version that resolves this vulnerability.

    Fixed in 16.2.1-1.4.el10_3
  24. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-16.2.1-1.4.el10_3.aa
  25. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-debuginfo-16.2.1-1.4.el10_3.aa
  26. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-gfortran-16.2.1-1.4.el10_3.aa
  27. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-gfortran-debuginfo-16.2.1-1.4.el10_3.aa
  28. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-plugin-annobin-16.2.1-1.4.el10_3.aa
  29. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-plugin-annobin-debuginfo-16.2.1-1.4.el10_3.aa
  30. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-plugin-devel-16.2.1-1.4.el10_3.aa
  31. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-gcc-plugin-devel-debuginfo-16.2.1-1.4.el10_3.aa
  32. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libasan-devel-16.2.1-1.4.el10_3.aa
  33. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libatomic-devel-16.2.1-1.4.el10_3.aa
  34. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libgccjit-16.2.1-1.4.el10_3.aa
  35. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libgccjit-debuginfo-16.2.1-1.4.el10_3.aa
  36. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libgccjit-devel-16.2.1-1.4.el10_3.aa
  37. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libgdiagnostics-devel-16.2.1-1.4.el10_3.aa
  38. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libitm-devel-16.2.1-1.4.el10_3.aa
  39. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-liblsan-devel-16.2.1-1.4.el10_3.aa
  40. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libtsan-devel-16.2.1-1.4.el10_3.aa
  41. Upgrade

    Upgrade redhat/gcc-toolset to a version that resolves this vulnerability.

    Fixed in 16-libubsan-devel-16.2.1-1.4.el10_3.aa
  42. Upgrade

    Upgrade redhat/libgdiagnostics to a version that resolves this vulnerability.

    Fixed in 16.2.1-1.4.el10_3.aa
  43. Upgrade

    Upgrade redhat/libgdiagnostics-debuginfo to a version that resolves this vulnerability.

    Fixed in 16.2.1-1.4.el10_3.aa

Event History

Nov 11, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203