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CVE-2026-115455

Gcc: stack overflow in std::bitset on libstdc++

CVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 4 Nov 2026 03:57:16 UTC. Read the latest advisory.

cve-program · CVE-2026-115455

Published

A flaw was found in GCC libstdc++. When an application extracts data into a bitset from a wide-character stream, internal stack memory allocation fails to properly account for character size and alignment. An attacker capable of supplying crafted input to an affected application could trigger a stack-based buffer overflow leading denial of service (DoS).

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-115455

Published

gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10"
                    ]
                }

gcc-toolset-15-gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc-toolset-15-gcc",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10"
                    ]
                }

gcc-toolset-16-gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc-toolset-16-gcc",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10"
                    ]
                }

mingw-gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mingw-gcc",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10"
                    ]
                }

compat-gcc-295

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 6",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "compat-gcc-295",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:6"
                    ]
                }

compat-gcc-296

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 6",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "compat-gcc-296",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:6"
                    ]
                }

compat-gcc-32

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 6",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "compat-gcc-32",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:6"
                    ]
                }

compat-gcc-34

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 6",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "compat-gcc-34",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:6"
                    ]
                }

gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 6",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:6"
                    ]
                }

compat-gcc-32

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 7",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "compat-gcc-32",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:7"
                    ]
                }

compat-gcc-34

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 7",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "compat-gcc-34",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:7"
                    ]
                }

compat-gcc-44

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 7",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "compat-gcc-44",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:7"
                    ]
                }

gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 7",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:7"
                    ]
                }

gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8"
                    ]
                }

gcc-toolset-14-gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc-toolset-14-gcc",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8"
                    ]
                }

gcc-toolset-15-gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc-toolset-15-gcc",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8"
                    ]
                }

mingw-gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mingw-gcc",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8"
                    ]
                }

gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9"
                    ]
                }

gcc-toolset-14-gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc-toolset-14-gcc",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9"
                    ]
                }

gcc-toolset-15-gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc-toolset-15-gcc",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9"
                    ]
                }

gcc-toolset-16-gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc-toolset-16-gcc",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9"
                    ]
                }

mingw-gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mingw-gcc",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9"
                    ]
                }

gcc

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Hardened Images",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:hummingbird:1"
                    ]
                }

gcc13

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Hardened Images",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "gcc13",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:hummingbird:1"
                    ]
                }

openshift/ose-rhel-coreos-8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift/ose-rhel-coreos-8",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                }

openshift/ose-rhel-coreos-9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift/ose-rhel-coreos-9",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                }

openshift/ose-rhel-coreos-9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 5",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift/ose-rhel-coreos-9",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:5"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 12 Nov 18:36 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current

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