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I. Basic Information for CVE-2026-32883
Vulnerability Information

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Vulnerability Title
Botan: Missing OCSP Response Signature Verification Allows MitM Certificate Revocation Bypass
Source: NVD (National Vulnerability Database)
Vulnerability Description
Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in version 3.11.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
密码学签名的验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Botan 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Botan是Jack Lloyd个人开发者的一个C++加密库。 Botan 3.0.0至3.11.0之前版本存在数据伪造问题漏洞,该漏洞源于X509路径验证过程中未验证OCSP响应的签名。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
randombitbotan >= 3.0.0, < 3.11.0 -
II. Public POCs for CVE-2026-32883
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III. Intelligence Information for CVE-2026-32883
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IV. Related Vulnerabilities
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