Description
A flaw was found in libstdc++. An integer overflow can occur when processing large inputs to the aligned operator new in the C++ library. This vulnerability could lead to an undersized memory allocation, potentially causing memory corruption or application instability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.8 Extended Update Support | — | — |
| Red Hat | Red Hat Hardened Images | — | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 5 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gcc-12 | No fix yet | — |
| Debian 14 | gcc-13 | 13.5.0-3 | — |
| Debian 14 | gcc-14 | 14.4.0-3 | — |
| Debian 14 | gcc-15 | 15.3.0-5 | — |
| Debian 14 | gcc-16 | 16.2.0-4 | — |
| Debian 13 | gcc-12 +2 | No fix yet | — |
| Debian 12 | gcc-12 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | gcc-11 +12 | No fix yet | — |
| Ubuntu 26.04 LTS | gcc-11 +12 | No fix yet | — |
| Ubuntu 24.04 LTS | gcc-12 | 12.4.0-2ubuntu1~24.04 | — |
| Ubuntu 24.04 LTS | gcc-12-cross | 19ubuntu2.2 | — |
| Ubuntu 24.04 LTS | gcc-9 +22 | No fix yet | — |
| Ubuntu 22.04 LTS | gcc-9 +24 | No fix yet | — |
| Ubuntu 20.04 LTS | gcc-7 +19 | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | gcc-5 +21 | No fix yet | — |
| Ubuntu 16.04 LTS | gcc-3.3 +22 | No fix yet | — |
| Ubuntu 14.04 LTS | gcc-3.3 +5 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | gcc-9 +2 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | gcc-5 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | cpp +27 | 11.5.0-16.el9_9 | RHSA-2026:98475 |
| RHEL 8 | cpp +27 | 8.5.0-30.el8_10 | RHSA-2026:89830 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.8 EUS | cpp +27 | 11.5.0-15.el9_8 | RHSA-2026:99032 |
| Red Hat Hardened Images 1 | cpp +39 | 16.2.1-2.hum1 | RHSA-2026:58503 |
| Red Hat Hardened Images 1 | gcc13 +3 | 13.5.0-0.1.hum1 | RHSA-2026:67275 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | cpp +27 | 8.5.0-30.el8_10.alma.1 | ALSA-2026:89830 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | gcc | 8.5.0-30.el8_10 | RLSA-2026:89830 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | gcc7 +1 | 7.5.0+r278197-150000.4.49.1 | SUSE-SU-2026:4913-1 |
| SLES 15 SP6 | gcc7 +1 | 7.5.0+r278197-150000.4.49.1 | SUSE-SU-2026:4913-1 |
| SLES 15 SP5 | gcc7 +1 | 7.5.0+r278197-150000.4.49.1 | SUSE-SU-2026:4913-1 |
| SLES 15 SP4 | gcc7 +1 | 7.5.0+r278197-150000.4.49.1 | SUSE-SU-2026:4913-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP6 | gcc7 +1 | 7.5.0+r278197-150000.4.49.1 | SUSE-SU-2026:4913-1 |
| SLES for SAP 15 SP5 | gcc7 +1 | 7.5.0+r278197-150000.4.49.1 | SUSE-SU-2026:4913-1 |
| SLES for SAP 15 SP4 | gcc7 +1 | 7.5.0+r278197-150000.4.49.1 | SUSE-SU-2026:4913-1 |
| SLE HPC 15 SP5 | gcc7 +1 | 7.5.0+r278197-150000.4.49.1 | SUSE-SU-2026:4913-1 |
| SLE HPC 15 SP4 | gcc7 +1 | 7.5.0+r278197-150000.4.49.1 | SUSE-SU-2026:4913-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gcc7 | 7.5.0+r278197-25.1 | openSUSE-SU-2026:11942-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | gcc | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | cpp +27 | 8.5.0-30.0.1.el8_10 | ELSA-2026-89830 |
Advisories 10
- RHSA-2026:89830 Red Hat Security Advisory: gcc security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:99032 Red Hat Security Advisory: gcc security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:98475 Red Hat Security Advisory: gcc security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- ELSA-2026-89830 Moderate: gcc security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 30, 2026
- ALSA-2026:89830 Moderate: gcc security update AlmaLinux Security Advisories · Oct 29, 2026
- RLSA-2026:89830 Moderate: gcc security update Rocky Linux Security Advisories · Oct 27, 2026
- SUSE-SU-2026:4913-1 Security update for gcc7 SUSE / openSUSE Security Updates · Oct 26, 2026
- openSUSE-SU-2026:11942-1 cpp7-7.5.0+r278197-25.1 on GA media SUSE / openSUSE Security Updates · Oct 2, 2026
- RHSA-2026:58503 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Sep 23, 2026
- RHSA-2026:67275 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Sep 23, 2026
References
- RHSA-2026:58503 vendor-advisory
- RHSA-2026:67275 vendor-advisory
- RHSA-2026:89830 vendor-advisory
- RHSA-2026:98475 vendor-advisory
- RHSA-2026:99032 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-95619 vdb-entry
- RHBZ#2537811 issue-tracking