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CVE-2026-102414— pbkdf2 rehashes long passwords on every iteration, enabling denial of service

一分钟漏洞结论

影响对象
browserify pbkdf2
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

pbkdf2 through 3.1.6 re-hashes passwords longer than the digest's block size on every iteration in its JavaScript fallback (lib/sync.js). A password longer than the block size (64 bytes, or 128 bytes for sha384 and sha512) is passed to HMAC as the key on every

CVSS 3.7 · Low
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一、 漏洞 CVE-2026-102414 基础信息

漏洞信息

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Vulnerability Title
pbkdf2 rehashes long passwords on every iteration, enabling denial of service
来源: CVE Program / CVE List V5
Vulnerability Description
pbkdf2 through 3.1.6 re-hashes passwords longer than the digest's block size on every iteration in its JavaScript fallback (lib/sync.js). A password longer than the block size (64 bytes, or 128 bytes for sha384 and sha512) is passed to HMAC as the key on every iteration, and HMAC hashes such keys in full each time. Cost is therefore O(iterations × password length), and a long password can block the event loop. The fallback is used by pbkdf2Sync and pbkdf2 on Node.js before 0.12, on Bun (1.0.0 through 1.1.34, and 1.2.6 and later), and on Deno 2.9.0 and later, because their native pbkdf2Sync fails the library's feature check. It is also used when lib/sync.js is imported directly. Node.js 0.12 and later, and browser builds (which use lib/sync-browser.js), are not affected. Applications that enforce a reasonable maximum password length are not meaningfully affected.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
来源: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
browserify pbkdf2 0 ~ 3.1.6 -

二、漏洞 CVE-2026-102414 的公开POC

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三、漏洞 CVE-2026-102414 的情报信息

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CVE-2026-102414 其他参考 (3)

IV. Related Vulnerabilities

Same vendor: browserify
Same weakness: CWE-400

V. Comments for CVE-2026-102414

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