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CVE-2026-21622— Password Reset Tokens Do Not Expire

Quick assessment

Affected
hexpm hexpm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hexpm是Hex开源的一个Web页面和接口。 Hexpm存在安全漏洞，该漏洞源于会话过期不足，可能导致账户接管。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.39% · P31

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2026-21622

Vulnerability Information
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Vulnerability Title
Password Reset Tokens Do Not Expire
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient Session Expiration vulnerability in hexpm hexpm/hexpm ('Elixir.Hexpm.Accounts.PasswordReset' module) allows Account Takeover. Password reset tokens generated via the "Reset your password" flow do not expire. When a user requests a password reset, Hex sends an email containing a reset link with a token. This token remains valid indefinitely until used. There is no time-based expiration enforced. If a user's historical emails are exposed through a data breach (e.g., a leaked mailbox archive), any unused password reset email contained in that dataset could be used by an attacker to reset the victim's password. The attacker does not need current access to the victim's email account, only access to a previously leaked copy of the reset email. This vulnerability is associated with program files lib/hexpm/accounts/password_reset.ex and program routines 'Elixir.Hexpm.Accounts.PasswordReset':can_reset?/3. This issue affects hexpm: from 617e44c71f1dd9043870205f371d375c5c4d886d before bb0e42091995945deef10556f58d046a52eb7884.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5
Vulnerability Title
Hexpm 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hexpm是Hex开源的一个Web页面和接口。 Hexpm存在安全漏洞，该漏洞源于会话过期不足，可能导致账户接管。
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

Vendor Product Affected Versions CPE Subscribe
hexpm hexpm 617e44c71f1dd9043870205f371d375c5c4d886d ~ bb0e42091995945deef10556f58d046a52eb7884 cpe:2.3:a:hexpm:hexpm:*:*:*:*:*:*:*:*
hexpm hex.pm 2025-08-01 ~ 2026-03-05 -

II. Public POCs for CVE-2026-21622

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III. Intelligence Information for CVE-2026-21622

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Patches & Fixes for CVE-2026-21622 (1)

Vendor Advisories for CVE-2026-21622 (3)

IV. Related Vulnerabilities

Same product: hexpm
Same vendor: hexpm
Same weakness: CWE-613

V. Comments for CVE-2026-21622

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