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Vulnerability · Published Oct 30, 2026 · Assigned by redhat

CVE-2026-114690Gcc: confirmed out-of-bounds read/write in libstdc++ parallel `std

Medium 6.2

In plain English

A medium-severity out-of-bounds write in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).

Severity (CVSS 3.1)6.2Medium
Exploit odds (30 days)0.1%top 98.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in GCC. An out-of-bounds memory access vulnerability exists in the libstdc++ parallel search implementation due to an undersized internal buffer. A local attacker can exploit this flaw by providing crafted search data to an application compiled with parallel mode, causing the process to crash and leading to a Denial of Service (DoS).

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12gcc-11no fix listedDEBIAN-CVE-2026-114690
Debian:12gcc-12no fix listedDEBIAN-CVE-2026-114690
Debian:13gcc-12no fix listedDEBIAN-CVE-2026-114690
Debian:14gcc-12no fix listedDEBIAN-CVE-2026-114690
Debian:13gcc-13no fix listedDEBIAN-CVE-2026-114690
Debian:14gcc-13no fix listedDEBIAN-CVE-2026-114690
Debian:13gcc-14no fix listedDEBIAN-CVE-2026-114690
Debian:14gcc-14no fix listedDEBIAN-CVE-2026-114690
Debian:14gcc-15no fix listedDEBIAN-CVE-2026-114690
Debian:14gcc-16no fix listedDEBIAN-CVE-2026-114690
Ubuntu:22.04:LTSgcc-10no fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-10no fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-10-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-10-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-10-cross-mipsenno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-10-cross-mipsenno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-10-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-10-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-11no fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-11no fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-11no fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-11no fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-11-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-11-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-11-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-11-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-11-cross-mipsenno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-11-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-11-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-11-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-11-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-12no fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-12no fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-12no fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-12no fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-12-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-12-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-12-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-12-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-12-cross-mipsenno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-12-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-12-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-12-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-12-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-13no fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-13no fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-13no fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-13-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-13-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-13-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-13-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-13-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-13-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-3.3no fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-3.3no fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-9no fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-9no fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-9-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-9-crossno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-9-cross-mipsenno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-9-cross-mipsenno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-9-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-9-cross-portsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-arm-none-eabino fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-arm-none-eabino fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-arm-none-eabino fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-arm-none-eabino fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-avrno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-avrno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-avrno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-avrno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-defaultsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-defaultsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-defaultsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-defaultsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-h8300-hmsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-h8300-hmsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-h8300-hmsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-h8300-hmsno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-m68hc1xno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-mingw-w64no fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-mingw-w64no fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-mingw-w64no fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-mingw-w64no fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-msp430no fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-or1k-elfno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-or1k-elfno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-or1k-elfno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-or1k-elfno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-riscv64-unknown-elfno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-riscv64-unknown-elfno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-riscv64-unknown-elfno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-riscv64-unknown-elfno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-snapshotno fix listedUBUNTU-CVE-2026-114690
Ubuntu:24.04:LTSgcc-snapshotno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.04:LTSgcc-snapshotno fix listedUBUNTU-CVE-2026-114690
Ubuntu:26.10gcc-snapshotno fix listedUBUNTU-CVE-2026-114690
Ubuntu:22.04:LTSgcc-xtensa-lx106no fix listedUBUNTU-CVE-2026-114690

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Hardened Images see references
Red Hat Red Hat Hardened Images see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 5 see references

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References