CVE-2026-49289
SimpleSAMLphp has Possible DoS via XPath Transform
7.5
HIGH
CVSS 3.1
描述
## Summary This library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms). ## Impact An attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.
如何修補 CVE-2026-49289
要修補 CVE-2026-49289,請將受影響套件升級到下列已修補版本。
- —升級至 4.20.3 或更新版本
- —升級至 4.20.3 或更新版本
CVE-2026-49289 正在被利用嗎?
目前沒有被利用訊號。CVE-2026-49289 既不在 CISA KEV 也沒有最新的 EPSS 分數。
受影響套件(2)
- from 0, < 4.20.3
- from 0, < 4.20.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |