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CVE-2025-71435— Coder before 2.23.0 Session Expiration Bypass via OIDC Without Refresh Token

Quick assessment

Affected
coder coder
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.

Coder 在 2.23.0 之前的版本中存在会话过期绕过漏洞。当未颁发刷新令牌（refresh token）时，已认证用户可在 OIDC 令牌过期后继续保留访问权限。用户可通过常规使用保持 APIKey Cookie 处于激活状态，该 Cookie 每 24 小时自动续期，从而在失去 OIDC 授权后仍能无限期访问 Coder。

CVSS 4.2 · Medium

Possible ATT&CK Techniques 1 AI

T1558.003 · Kerberoasting

Affected Version Matrix 2

VendorProduct Version RangeStatus
coder coder < 2.23.0 affected
2.23.0 unaffected
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I. Basic Information for CVE-2025-71435

Vulnerability Information
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Vulnerability Title
Coder before 2.23.0 Session Expiration Bypass via OIDC Without Refresh Token
Source: CVE Program / CVE List V5
Vulnerability Description
Coder before 2.23.0 contains a session expiration bypass vulnerability that allows authenticated users to retain access after OIDC token expiry when no refresh token is issued. Users can keep their APIKey cookie active through regular use, extending it every 24 hours to access Coder indefinitely after losing OIDC authorization.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
coder coder 0 ~ 2.23.0 -

II. Public POCs for CVE-2025-71435

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III. Intelligence Information for CVE-2025-71435

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Vendor Advisories for CVE-2025-71435 (1)

Vendor Pages for CVE-2025-71435 (1)

Same Patch Batch · coder · 2026-10-17 · 11 CVEs total

CVE-2026-111927 7.7 HIGH Coder before 2.35.4 Credential Theft via Workspace Proxy Hostname Prefix Match
CVE-2026-111928 5.4 MEDIUM Coder 2.0.0 before 2.34.8 Authorization Bypass via User-Level ACL in RBAC Policy
CVE-2026-111929 5.3 MEDIUM Coder 2.30.0 before 2.34.8 Cross-Organization File Disclosure via DownloadFile RPC
CVE-2024-58398 4.3 MEDIUM Coder 2.3.1 before 2.16.1 Open Redirect via Login Page redirect Parameter
CVE-2026-111930 4.3 MEDIUM Coder from 2.26.0 before 2.34.8 Information Disclosure via Workspace ACL Endpoint
CVE-2026-111931 4.3 MEDIUM Coder 2.0.0 before 2.34.8 Open Redirect via Workspace App Proxy
CVE-2026-111933 3.7 LOW Coder before 2.34.2 User Enumeration via Login Placeholder Hash
CVE-2026-111934 3.7 LOW Coder before 2.34.7 IP Spoofing via X-Forwarded-For Header
CVE-2026-111932 3.4 LOW Coder before 2.34.2 Stored HTML Injection via Appearance Settings
CVE-2026-111926 3.3 LOW Coder from 2.10.0 before 2.34.8 Information Disclosure via Agent /debug/manifest

IV. Related Vulnerabilities

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

V. Comments for CVE-2025-71435

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