CVE-2026-114691

Public on 2026-10-30
Modified on 2026-10-31
Description
A flaw was found in the libstdc++ component of GCC. An attacker who can provide an excessively large element count to a boolean vector (std::vector) constructor can trigger an integer wrap during internal memory calculations. This issue leaves the container in an inconsistent state, leading to out-of-bounds memory access and resulting in an application crash or a Denial of Service (DoS) during subsequent operations.
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
5.9
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core compat-gcc-32 Not Affected
Amazon Linux 2 - Core compat-gcc-48 Not Affected
Amazon Linux 2 - Core gcc Pending Fix
Amazon Linux 2023 gcc Pending Fix
Amazon Linux 2027 Preview gcc Pending Fix
Amazon Linux 2 - Core gcc10 Pending Fix
Amazon Linux 2023 gcc14 Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H