CVE-2026-27571
中文标题:
（暂无数据）
英文标题:
nats-server websockets are vulnerable to pre-auth memory DoS
漏洞描述
中文描述:
（暂无数据）
英文描述:
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The WebSockets handling of NATS messages handles compressed messages via the WebSockets negotiated compression. Prior to versions 2.11.2 and 2.12.3, the implementation bound the memory size of a NATS message but did not independently bound the memory consumption of the memory stream when constructing a NATS message which might then fail validation for size reasons. An attacker can use a compression bomb to cause excessive memory consumption, often resulting in the operating system terminating the server process. The use of compression is negotiated before authentication, so this does not require valid NATS credentials to exploit. The fix, present in versions 2.11.2 and 2.12.3, was to bounds the decompression to fail once the message was too large, instead of continuing on. The vulnerability only affects deployments which use WebSockets and which expose the network port to untrusted end-points.
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| nats-io | nats-server | < 2.11.12 | - | - |
cpe:2.3:a:nats-io:nats-server:<_2.11.12:*:*:*:*:*:*:*
|
| nats-io | nats-server | >= 2.12.0-RC.1, < 2.12.3 | - | - |
cpe:2.3:a:nats-io:nats-server:>=_2.12.0-rc.1,_<_2.12.3:*:*:*:*:*:*:*
|
| linuxfoundation | nats-server | * | - | - |
cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
参考链接
cve.org
cve.org
cve.org
cve.org
CVSS评分详情
3.1 (cna)
MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2026-27571 |
2026-02-25 03:19:54 | 2026-02-24 22:00:01 |
| NVD | nvd_CVE-2026-27571 |
2026-02-25 02:00:04 | 2026-02-24 22:00:04 |
版本与语言
安全公告
变更历史
查看详细变更
- affected_products_count: 2 -> 3
查看详细变更
- data_sources: ['cve'] -> ['cve', 'nvd']