- Issued:
- 2026-11-11
- Updated:
- 2026-11-11
RHSA-2026:98633 - Security Advisory
Synopsis
Moderate: gcc-toolset-15-gcc security update
Type/Severity
Security Advisory: Moderate
Red Hat Lightspeed patch analysis
Identify and remediate systems affected by this advisory.
Topic
An update for gcc-toolset-15-gcc is now available for Red Hat Enterprise Linux 10.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
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::from_chars (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.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
Affected Products
- Red Hat Enterprise Linux for x86_64 10 x86_64
- Red Hat Enterprise Linux for IBM z Systems 10 s390x
- Red Hat Enterprise Linux for Power, little endian 10 ppc64le
- Red Hat Enterprise Linux for ARM 64 10 aarch64
Fixes
- BZ - 2478508 - CVE-2026-114691 gcc: Integer wrap in `std
- BZ - 2478652 - CVE-2026-114690 gcc: Confirmed out-of-bounds read/write in libstdc++ parallel `std
- BZ - 2562933 - CVE-2026-115455 gcc: Stack overflow in std::bitset on libstdc++
- BZ - 2563044 - CVE-2026-115456 gcc: Out-of-bounds read in std::from_chars
Note:
More recent versions of these packages may be available.
Click a package name for more details.
Red Hat Enterprise Linux for x86_64 10
| SRPM | |
|---|---|
| gcc-toolset-15-gcc-15.2.1-8.2.el10_3.src.rpm | SHA-256: 55ba22470ff297abc69ddf59b8317087793d53219131a51a5e96d14279dc702d |
| x86_64 | |
| gcc-toolset-15-gcc-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: d880d1b18dc0b16ac7a5d16424d900bf623a4eb7296ad4bf2ffbf773890c00de |
| gcc-toolset-15-gcc-c++-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 72dc0463f58b8c56e9261d41f632a5646bce55ffdcf50488ff7ec172d38a0fe4 |
| gcc-toolset-15-gcc-c++-debuginfo-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 6cfc52457b947c7ba4408e5ddf6c529640182cb6bdc045a1e08b7f92fa84406a |
| gcc-toolset-15-gcc-debuginfo-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 165d700608eb55f61f4f501bcc495171399daf52644f6d459d34f423edfdf9c4 |
| gcc-toolset-15-gcc-gfortran-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 2df3064da809d3b5f29b3c4dfc2b5e733e23879777a06a0c6d15c827b5cfa221 |
| gcc-toolset-15-gcc-gfortran-debuginfo-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: d21260fcf57790f91f789d6aa7cf4dbdfad2c5f269fc057e86d02d826038f534 |
| gcc-toolset-15-gcc-plugin-annobin-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 9e38586678752c7aadbefd8023688f560049972ff8339e8fb744ba4eda56c529 |
| gcc-toolset-15-gcc-plugin-annobin-debuginfo-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 010874af355c9a66aa968c07a22afe8aa546dfefb22a42ff9577300885e6a69b |
| gcc-toolset-15-gcc-plugin-devel-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 36b51d5a28a872ee3236b0ae87c53da766022d3f0ac829ddf8a7115400d51488 |
| gcc-toolset-15-gcc-plugin-devel-debuginfo-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 0351688263bdf1833398dbafcac4d537dbf8a42c56e57748a2ee892938c242a6 |
| gcc-toolset-15-libasan-devel-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: e05ad315acd53d73ee5e33af5042d7add62526824b3f5d70896a5172a83d1a6e |
| gcc-toolset-15-libatomic-devel-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 53eb11c6b10644ff29fb2b1f97e885163528c2d780106c59ceb83f328100493a |
| gcc-toolset-15-libgccjit-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: edd5013d24bf1a678f4d0c4c4e347c58315f16b0d3c6646e00497c5cf3d16012 |
| gcc-toolset-15-libgccjit-debuginfo-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 0a1c2901482ba9b465f4c55b5d811393fc1328bbfdaa6f67d03cac03dc508ea4 |
| gcc-toolset-15-libgccjit-devel-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 4e1d2cc8331590ad1507f8246c369f383d15450e6efcdab20eb19e32d264dd0b |
| gcc-toolset-15-libitm-devel-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: c0a24fc30cb690d5d45ce0a1497015ae8b14c72eab99d49b381f20a0f1192e23 |
| gcc-toolset-15-liblsan-devel-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: c8bef188993f9278f2924bb1f5b33c31565d7223a4c5962035055dd3817cc982 |
| gcc-toolset-15-libquadmath-devel-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 6752a31fbe1969c980271eaae453ecde6c32f8b039245529cc27e4abea6117aa |
| gcc-toolset-15-libstdc++-devel-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 4dc5681ad4605d71d5431f3fdd712c0ff6b18a44cc30192d98aae3b98f4e4506 |
| gcc-toolset-15-libstdc++-docs-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 5e38934faff5c945cfbd3a38f5c7757b6f07b2aef811478b16773a6d87089d30 |
| gcc-toolset-15-libtsan-devel-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 581cddea297d6f009242f8215c66ab84c8236b5dd36b1976975a093887d822dd |
| gcc-toolset-15-libubsan-devel-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 410a5eff3b987a83a71a1d517af0d51d4bb932bcfa920f06c432f6132cd3e0c6 |
| gcc-toolset-15-offload-nvptx-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: 3c5c1d0f586b01619b8fd8bbf8495087e4eaf52e6bc9cbf993b657340455a3d6 |
| gcc-toolset-15-offload-nvptx-debuginfo-15.2.1-8.2.el10_3.x86_64.rpm | SHA-256: f1fbcfc21397576b49d4bb8870cea296c5ce6f756b5962a47128953c6e0c1d06 |
Red Hat Enterprise Linux for IBM z Systems 10
| SRPM | |
|---|---|
| gcc-toolset-15-gcc-15.2.1-8.2.el10_3.src.rpm | SHA-256: 55ba22470ff297abc69ddf59b8317087793d53219131a51a5e96d14279dc702d |
| s390x | |
| gcc-toolset-15-gcc-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 1cbbd9f97e1d62b3a76b4cc290f88bdf89fa9ee6070940df3a05c6161a42df61 |
| gcc-toolset-15-gcc-c++-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 6ee8ed135346816058307869c792d02683997465e81672a0d3bff3c3b23c0b67 |
| gcc-toolset-15-gcc-c++-debuginfo-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 76fc6b131d60f26dd7a6804cce1c1bcc8681c8245dd3abab6dbae3dba9f1df36 |
| gcc-toolset-15-gcc-debuginfo-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 307bdc4e3290f81b6d13c562b79d49dc3e614320f7405daba81e698853b6e878 |
| gcc-toolset-15-gcc-gfortran-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 7cb7ead71d7e767a88b6a9dae282dfbda8315bb74534b733ce8abaf601ef8a30 |
| gcc-toolset-15-gcc-gfortran-debuginfo-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: a0d7898dce461c6166ab5121042bee91292fd48832a7e761bbd4f3f5287b0a4d |
| gcc-toolset-15-gcc-plugin-annobin-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: e92898ac5945e961443a58069b7f52e0fbac4d47d6cf7edb8b04916d6c6c5a10 |
| gcc-toolset-15-gcc-plugin-annobin-debuginfo-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 73ce02c3781a88dab5e596e62337764e7a6f2ac379eac0751dbb61acdfbd78c4 |
| gcc-toolset-15-gcc-plugin-devel-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 428bd4b29c32cd8c918cedf2ac59c94b88d4c8f888bbc9dc3e996c86d46bd3d3 |
| gcc-toolset-15-gcc-plugin-devel-debuginfo-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 46fd99660e8eb7a71c82fa23aa4b02510c8e990e1c7b6148d1b078a457cfee76 |
| gcc-toolset-15-libasan-devel-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 730958b8d3b8c4e5e5e02ac83b459f683c1445a749ebee365799f4566e331cd2 |
| gcc-toolset-15-libatomic-devel-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 9b493d351f003f260e74e450fb474eb81fe99d80f2ce346b7f2bfcbb4bf80f77 |
| gcc-toolset-15-libgccjit-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: b6ffa3f804952830962b9ac5a75bbd4c5e2a9f4cc03799b4dba960efc47aa0a2 |
| gcc-toolset-15-libgccjit-debuginfo-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: bdf669beeca5d05c2360fe942eeca0b0b53d4c83cb413cabf268435e727f6562 |
| gcc-toolset-15-libgccjit-devel-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 435c126d7d872ee1f4e9acf6e954c0640184a02e312f4f981bc53341ec360d8b |
| gcc-toolset-15-libitm-devel-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: f2cf35a3577abd3a283a09a6addeba0d2657c5477c16e055e558b1712e703e7a |
| gcc-toolset-15-liblsan-devel-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 8db5d1e95e7c8400ea54f6350ce8948bf971b10843468312db2751b0d1d55f70 |
| gcc-toolset-15-libstdc++-devel-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: f1b06171969b688a93f442d75c62253bde8816992a2ab98a4f39a6b5cf6a24cc |
| gcc-toolset-15-libstdc++-docs-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: b4b935ec2a2011ffba4938fd2d1232366c7d0acb74ceabfce6c252216f0fbb99 |
| gcc-toolset-15-libtsan-devel-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 50b0bca53b019863f5041b686086f0072a5ca937d5004f96b7a03800dca62419 |
| gcc-toolset-15-libubsan-devel-15.2.1-8.2.el10_3.s390x.rpm | SHA-256: 09c836954462f547ef38f9cec8f66b17cf266f0a08fd35a4531b77d0c8243913 |
Red Hat Enterprise Linux for Power, little endian 10
| SRPM | |
|---|---|
| gcc-toolset-15-gcc-15.2.1-8.2.el10_3.src.rpm | SHA-256: 55ba22470ff297abc69ddf59b8317087793d53219131a51a5e96d14279dc702d |
| ppc64le | |
| gcc-toolset-15-gcc-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: b02e85fed1a1575791cb93fa5cc87e29ff27a3da43da4738f78e7c0cae2e83c4 |
| gcc-toolset-15-gcc-c++-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 740f71d4f15f688b16fe6b31fa04874887c48060449a3c0bbd04c7f77e3051eb |
| gcc-toolset-15-gcc-c++-debuginfo-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 18d0c4d92e6d0db05c1682c7609bfd5c154a6f2aeae6ba7e33a95f2c05cd3382 |
| gcc-toolset-15-gcc-debuginfo-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 8802cd7b1c3ff08d1c511746ad95c3f740d54ef013696a6a07a1b13b0f3e8cdf |
| gcc-toolset-15-gcc-gfortran-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: e5756d95b720115a84215f05c8676b3b484b77b7405ca731a68e7b899d7c9344 |
| gcc-toolset-15-gcc-gfortran-debuginfo-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: bd8ccf77155c19bdb0e121fefeea12ad1901d1f41ffe64150f8563b2064e7c36 |
| gcc-toolset-15-gcc-plugin-annobin-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 86099e38d73b831d72cab8cda18cb00409956e3d6390dc2c8a2bf9f2e157f826 |
| gcc-toolset-15-gcc-plugin-annobin-debuginfo-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 97eccc6ea477d8971d2fdf283e9a61d8add5c90340a4d270fb5d22e0468c9bf3 |
| gcc-toolset-15-gcc-plugin-devel-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 5011c357b2805ff051cfcd47c7d6f2fa86fb8a388b7a3d2f95c9b3dc768024c7 |
| gcc-toolset-15-gcc-plugin-devel-debuginfo-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 5890379af84a483b5d40bf029aabf5b77f02f6f0ffe805755fa26946af7809c8 |
| gcc-toolset-15-libasan-devel-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 52d15a287e381bc3b05ef15cb12112ee5d1e9a1149c3c9276725848fe18df442 |
| gcc-toolset-15-libatomic-devel-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: c174fc47130e80d18c67da90eac48717a9f8adcf4d63ac45de33d3d8d9852ba7 |
| gcc-toolset-15-libgccjit-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: cf20ed22b186f521d604668ad4a1086496eafac7fc0a7b69a9aa9d14fa31d219 |
| gcc-toolset-15-libgccjit-debuginfo-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 3b93767fe31b49650738feb11b2352f4578ac831eb943963c1a5312855320e49 |
| gcc-toolset-15-libgccjit-devel-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: adc09b7883a1b52a72ce2986180221f698c573bc0773a10657c4922119047acb |
| gcc-toolset-15-libitm-devel-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: eb0df7c1c7a6a04c99186c7d80109b0a73aa147635d322ec2d422bfdafd39d54 |
| gcc-toolset-15-liblsan-devel-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 8d646d51dbac533ece6d1eb519a36857c127d817fa938757702ad372465d47cb |
| gcc-toolset-15-libquadmath-devel-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 6a772d11b8f8ecf771f793d93b1a28aee1c2d2b9b08a01a3206224f45ce81066 |
| gcc-toolset-15-libstdc++-devel-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 09022148b2385fcbae3d47e8e24a1db69fcf585692c914eb204ba712035b1fb2 |
| gcc-toolset-15-libstdc++-docs-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: bf0cb557505c21b6f872ba7f2cd1211a6b294cc3146ca65b3a72b25e47252cef |
| gcc-toolset-15-libtsan-devel-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 1592c26e3f731fa846f0550906c109105cbd96a200d0d71ced1b5f1bc8c7c187 |
| gcc-toolset-15-libubsan-devel-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 8315126526ecd5f6430cabe1f642ab7b880dfa326cd5e2e7268b771df9cd3db9 |
| gcc-toolset-15-offload-nvptx-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 410ad7cf7997bebb43f4b403dc9d7677412b125fa693e0c2fac6ce105d282a5d |
| gcc-toolset-15-offload-nvptx-debuginfo-15.2.1-8.2.el10_3.ppc64le.rpm | SHA-256: 2a135c7fdd0b140bedb66f372138e983c0c3705b3d55247674162e6935ff23b0 |
Red Hat Enterprise Linux for ARM 64 10
| SRPM | |
|---|---|
| gcc-toolset-15-gcc-15.2.1-8.2.el10_3.src.rpm | SHA-256: 55ba22470ff297abc69ddf59b8317087793d53219131a51a5e96d14279dc702d |
| aarch64 | |
| gcc-toolset-15-gcc-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 6b7e1983fcad2068d8013faf65684dc9903c8d727ae271682affdf15e02089bf |
| gcc-toolset-15-gcc-c++-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: df7bc43fade5900e7106f1c703922819746b8db4849685b8ff36c9042e68b54d |
| gcc-toolset-15-gcc-c++-debuginfo-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: c6bb9ae05195a41bc6f1d47d49779611fd222d19af54f0f50447e3fe561068c9 |
| gcc-toolset-15-gcc-debuginfo-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 6d0c7846e70201cc79f4af08cf25158ff4be09403f43ba0d22399a984bf257a6 |
| gcc-toolset-15-gcc-gfortran-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 1e57bb756e4c7333c3768270ec548fb57d6e636995e0a4f3ac0e15c48a6a4f98 |
| gcc-toolset-15-gcc-gfortran-debuginfo-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 16edf20f573bf63fa14dec00119765c74af9b56cac21a2aaa3034733d89cd805 |
| gcc-toolset-15-gcc-plugin-annobin-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 374a9d5833b4428f46d7a9160242f0b20fdb179d86a0ab8499b595e56a2a8ba1 |
| gcc-toolset-15-gcc-plugin-annobin-debuginfo-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 3f0489e51b149dbb033e5785a168541913d960403173c46465efaf34a5d7355f |
| gcc-toolset-15-gcc-plugin-devel-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: cbd5bd2cfbdd4727c2731bdf0206fb3a05e7f1db7fbe49e66181e3848008ec0e |
| gcc-toolset-15-gcc-plugin-devel-debuginfo-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: f13505a0d3d2f400404bafe5c7bf8ae26ffa0a99eece16f7f779211bab9ceb2c |
| gcc-toolset-15-libasan-devel-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 1fb8e9a6987ec9306fcbcc87bfac901f0c282cefc039e8798150c43156c32391 |
| gcc-toolset-15-libatomic-devel-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 16adf3b47d7357505eaa9d15c897b1ebf356477ec012b45d8a140e404f94b26b |
| gcc-toolset-15-libgccjit-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 21e3b06039aa74dee2bd8b12443e2de92be561eff18c3ab74d85cb9a1e2682e5 |
| gcc-toolset-15-libgccjit-debuginfo-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 14e9ae36dda634546f1769774c67e5c854c70e34a9c5128049887a0f9178849d |
| gcc-toolset-15-libgccjit-devel-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: b37bcc42183802741b6eb312a223edfb773b0b2f790dec391d91bae7ddede469 |
| gcc-toolset-15-libitm-devel-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: c9af79a587b9b8075d53e821f852d5ad4077d844dbb6dd8f3fc8ae592bdc8bfd |
| gcc-toolset-15-liblsan-devel-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 1f39c76445da7f7af19be0b8dd961cc942a027591a41e0d6968ed99f5a0abf25 |
| gcc-toolset-15-libstdc++-devel-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 3cf3b4502b6fd1d97f31cdcab07a4ff52c09204d2990abcee4cb4b7519abb344 |
| gcc-toolset-15-libstdc++-docs-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 08872a42a58d415e343cc232d6a7ec70ebab804376a8b2e1260592ee9f10ad0b |
| gcc-toolset-15-libtsan-devel-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 34505de514f915fe6eb78af6ed1e415395dab424e9ec057336c79298c09cf880 |
| gcc-toolset-15-libubsan-devel-15.2.1-8.2.el10_3.aarch64.rpm | SHA-256: 7c61ba9c696a6843f564c8af88edac993216162c68e032d755dd4b99f3c40ab3 |
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