Описание
The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.18, 2.1.4, 3.0.6, and 5.0.9, expand() does not apply maxLength while constructing comma-alternative intermediate arrays or padded sequences, allowing attacker-controlled input to exhaust memory or block the event loop. The fix for CVE-2026-14257 is bypassed by the vulnerability. This issue is fixed in versions 1.1.18, 2.1.4, 3.0.6, and 5.0.9.
A flaw was found in the brace-expansion library. The expand() function does not apply maxLength when constructing comma-alternative intermediate arrays or padded sequences, allowing attacker-controlled input to exhaust memory or block the event loop, resulting in a denial of service. This issue is due to an incomplete mitigation of CVE-2026-14257.
Отчет
Any applications that pass user-controlled input to the expand() function are vulnerable to this issue. This flaw can result in an excessive consumption of memory that eventually terminates the process or blocks the event loop, both causing a denial of service. As this vulnerability allows a remote attacker to cause a denial of service, it has been rated with an important severity.
Меры по смягчению последствий
To mitigate this vulnerability, do not pass untrusted input to the expand() function.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Cryostat 4 | brace-expansion | Not affected | ||
| Cryostat 4 | cryostat-openshift-console-plugin-npm | Not affected | ||
| Cryostat 4 | grafana-infinity-datasource-npm | Affected | ||
| Exploit Intelligence | exploit-intelligence-tech-preview/vulnerability-analysis-rhel9 | Affected | ||
| Gatekeeper 3 | gatekeeper/gatekeeper-rhel9 | Not affected | ||
| Migration Toolkit for Applications 8 | mta/mta-cli-rhel9 | Affected | ||
| Migration Toolkit for Applications 8 | mta/mta-generic-external-provider-rhel9 | Affected | ||
| Migration Toolkit for Applications 8 | mta/mta-ui-rhel8 | Not affected | ||
| Migration Toolkit for Applications 8 | mta/mta-ui-rhel9 | Affected | ||
| Migration Toolkit for Containers | rhmtc/openshift-migration-ui-rhel8 | Affected |
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.18, 2.1.4, 3.0.6, and 5.0.9, expand() does not apply maxLength while constructing comma-alternative intermediate arrays or padded sequences, allowing attacker-controlled input to exhaust memory or block the event loop. The fix for CVE-2026-14257 is bypassed by the vulnerability. This issue is fixed in versions 1.1.18, 2.1.4, 3.0.6, and 5.0.9.
The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.18, 2.1.4, 3.0.6, and 5.0.9, expand() does not apply maxLength while constructing comma-alternative intermediate arrays or padded sequences, allowing attacker-controlled input to exhaust memory or block the event loop. The fix for CVE-2026-14257 is bypassed by the vulnerability. This issue is fixed in versions 1.1.18, 2.1.4, 3.0.6, and 5.0.9.
brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation
The brace-expansion library generates arbitrary strings containing a c ...
EPSS
7.5 High
CVSS3