CVE-2025-59420

一、漏洞信息
 漏洞编号：[CVE-2025-59420](https://nvd.nist.gov/vuln/detail/CVE-2025-59420)
 漏洞归属组件：[python-Authlib](https://gitee.com/src-openeuler/python-Authlib)
 漏洞归属的版本：1.2.0,1.3.0
 CVSS V3.x分值：
  BaseScore：7.5 High
  Vector：CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
 漏洞简述：
  Authlib&#39;s JWS validation accepts tokens that declare unknown critical header parameters (`crit`), violating the &quot;must understand&quot; semantics of RFC 7515. An attacker can craft a signed token with a key header (such as `bork` or `cnf`), which will be rejected by strict validator but accepted by Authlib. In a mixed-language environment, this results in split validation, potentially leading to policy bypass, replay attacks, or privilege escalation.
 漏洞公开时间：2025-09-23 02:15:46
 漏洞创建时间：2025-09-23 00:51:53
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-59420
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
|  | https://lists.debian.org/debian-lts-announce/2025/10/msg00032.html |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-59420 |  |
|  | https://www.cve.org/CVERecord?id=CVE-2025-59420 |  |
|  | https://github.com/authlib/authlib |  |
|  | https://github.com/advisories/GHSA-9ggr-2464-2j32 |  |
|  | https://www.mend.io/vulnerability-database/CVE-2025-59420 |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2397460 |  |
|  | https://github.com/authlib/authlib/commit/6b1813e4392eb7c168c276099ff7783b176479df |  |
|  | https://security-tracker.debian.org/tracker/CVE-2025-59420 |  |
|  | https://github.com/authlib/authlib/security/advisories/GHSA-9ggr-2464-2j32 |  |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  七彩瞬析开源风险感知平台
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
| authlib/authlib |  | https://github.com/authlib/authlib/commit/6b1813e4392eb7c168c276099ff7783b176479df |  | ljqc |
|  |  | https://github.com/authlib/authlib/commit/6b1813e4392eb7c168c276099ff7783b176479df |  | osv |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
                                      
 openEuler评分：
  7.5
 Vector：CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
 受影响版本排查(受影响/不受影响)：
  1.master(1.6.5):
2.openEuler-20.03-LTS-SP4(1.2.0):
3.openEuler-22.03-LTS-SP3:
4.openEuler-22.03-LTS-SP4:
5.openEuler-24.03-LTS:
6.openEuler-24.03-LTS-Next(1.3.2):
7.openEuler-24.03-LTS-SP1(1.2.0):
8.openEuler-24.03-LTS-SP2(1.2.0):

修复是否涉及abi变化(是/否)：
  1.master(1.6.5):
2.openEuler-20.03-LTS-SP4(1.2.0):
3.openEuler-22.03-LTS-SP3:
4.openEuler-22.03-LTS-SP4:
5.openEuler-24.03-LTS:
6.openEuler-24.03-LTS-Next(1.3.2):
7.openEuler-24.03-LTS-SP1(1.2.0):
8.openEuler-24.03-LTS-SP2(1.2.0):

原因说明：
  1.master(1.6.5):
2.openEuler-20.03-LTS-SP4(1.2.0):
3.openEuler-22.03-LTS-SP3:
4.openEuler-22.03-LTS-SP4:
5.openEuler-24.03-LTS:
6.openEuler-24.03-LTS-Next(1.3.2):
7.openEuler-24.03-LTS-SP1(1.2.0):
8.openEuler-24.03-LTS-SP2(1.2.0):

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CVE-2025-59420

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