CVE-2026-39829 - The RSA and DSA public key parsers did not enforce size limits on key parameters. A crafted public key with an excessively large modulus or DSA parameter could cause several minutes of CPU consumption during signature verification. This could be triggered by unauthenticated clients during public key authentication. RSA moduli are now limited to 8192 bits, and DSA parameters are validated per FIPS 186-2. - 漏洞详情

漏洞编号：CVE-2026-39829

风险等级：高危

漏洞来源：CVE

CVE 编号：CVE-2026-39829

CNNVD 编号：-

厂商/产品：golang / crypto

影响范围：cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:*

CWE：CWE-347

发布/更新时间：2026-05-22 / 2026-08-28

漏洞描述

The RSA and DSA public key parsers did not enforce size limits on key parameters. A crafted public key with an excessively large modulus or DSA parameter could cause several minutes of CPU consumption during signature verification. This could be triggered by unauthenticated clients during public key authentication. RSA moduli are now limited to 8192 bits, and DSA parameters are validated per FIPS 186-2.

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