RLSA-2026:98526: Moderate: gcc-toolset-15-gcc security update

Published Nov 13, 2026
·
Updated

The gcc-toolset-15-gcc package contains the GNU Compiler Collection version 15.

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

24 affected componentsFixes available
rocky-linux/gcc-toolset-15-gcc<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-gcc-c++<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-gcc-c++-debuginfo<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-gcc-debuginfo<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-gcc-gfortran<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-gcc-gfortran-debuginfo<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-gcc-plugin-annobin<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-gcc-plugin-annobin-debuginfo<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-gcc-plugin-devel<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-gcc-plugin-devel-debuginfo<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libasan-devel<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libatomic-devel<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libgccjit<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libgccjit-debuginfo<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libgccjit-devel<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libitm-devel<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-liblsan-devel<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libstdc++-devel<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libstdc++-docs<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libtsan-devel<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libubsan-devel<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-libquadmath-devel<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-offload-nvptx<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9
rocky-linux/gcc-toolset-15-offload-nvptx-debuginfo<0:15.2.1-7.4.el9_9
0:15.2.1-7.4.el9_9

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-gcc to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  2. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-gcc-c++ to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  3. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-gcc-c++-debuginfo to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  4. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-gcc-debuginfo to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  5. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-gcc-gfortran to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  6. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-gcc-gfortran-debuginfo to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  7. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-gcc-plugin-annobin to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  8. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-gcc-plugin-annobin-debuginfo to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  9. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-gcc-plugin-devel to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  10. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-gcc-plugin-devel-debuginfo to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  11. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libasan-devel to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  12. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libatomic-devel to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  13. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libgccjit to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  14. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libgccjit-debuginfo to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  15. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libgccjit-devel to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  16. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libitm-devel to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  17. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-liblsan-devel to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  18. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libstdc++-devel to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  19. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libstdc++-docs to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  20. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libtsan-devel to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  21. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libubsan-devel to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  22. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-libquadmath-devel to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  23. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-offload-nvptx to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9
  24. Upgrade

    Upgrade rocky-linux/gcc-toolset-15-offload-nvptx-debuginfo to a version that resolves this vulnerability.

    Fixed in 0:15.2.1-7.4.el9_9

Event History

Nov 13, 2026
Advisory Published
via OSV·12:04 PM
Data Sourced
via OSV·12:04 PM
DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

Which components in this toolset are covered by the advisory?

The affected packages include gcc-toolset-15-gcc and gcc-toolset-15-gcc-c++, along with their debuginfo packages. The advisory also covers gcc-toolset-15-gcc-gfortran, gcc-toolset-15-gcc-plugin-annobin, and the corresponding debuginfo packages.

2

What kinds of flaws are addressed?

The fixes address an integer wrap, confirmed out-of-bounds read/write in libstdc++ parallel functionality, a stack overflow in std::bitset, and an out-of-bounds read in std::from_chars. The listed issues are CVE-2026-114691, CVE-2026-114690, CVE-2026-115455, and CVE-2026-115456.

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