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CVE-2026-81826— Flowintel Fails to Invalidate Active Sessions After Password Change

Quick assessment

Affected
flowintel flowintel
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.

flowintel是flowintel团队开源的一款威胁情报与威胁分析管理平台。 flowintel 3.3.0及之前版本存在会话机制问题漏洞，该漏洞源于用户更改密码后未撤销现有认证会话，可能导致已获取有效会话的攻击者持续保持访问权限。

CVSS 9.1 · Critical EPSS 0.41% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
flowintel flowintel ≤ 3.3.0 affected
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I. Basic Information for CVE-2026-81826

Vulnerability Information
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Vulnerability Title
Flowintel Fails to Invalidate Active Sessions After Password Change
Source: CVE Program / CVE List V5
Vulnerability Description
Affected versions of Flowintel do not revoke existing authenticated sessions when a user’s password is changed. This means that if an attacker already possesses a valid session—for example, from prior access or a stolen session token—the victim changing their password does not terminate that attacker’s access. The session remains usable until it expires naturally. The upstream commit describes this directly as: “session keeps working until it expires.” The fix detects password changes and explicitly invokes _invalidate_user_sessions(user.id) after the database update. This is applied in both edit_user_core() and admin_edit_user_core(). Version impacted >=3.3.0
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:N/SC:N/SI:N/SA: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
Vulnerability Title
flowintel 会话机制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
flowintel是flowintel团队开源的一款威胁情报与威胁分析管理平台。 flowintel 3.3.0及之前版本存在会话机制问题漏洞，该漏洞源于用户更改密码后未撤销现有认证会话，可能导致已获取有效会话的攻击者持续保持访问权限。
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
flowintel flowintel 0 ~ 3.3.0 -

II. Public POCs for CVE-2026-81826

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III. Intelligence Information for CVE-2026-81826

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Patches & Fixes for CVE-2026-81826 (1)

Same Patch Batch · flowintel · 2026-08-27 · 11 CVEs total

CVE-2026-81662 8.6 HIGH Flowintel Alert Settings Configuration Allows Remote Code Execution via Arbitrary Configur
CVE-2026-81818 8.6 HIGH Flowintel Organization Administrator Can Reset Full Administrator Password and Escalate Pr
CVE-2026-81743 7.5 HIGH Flowintel Arbitrary Log File Path Allows Remote Code Execution via Template Injection
CVE-2026-81817 7.2 HIGH Flowintel Missing Task-to-Case Authorization Allows Cross-Case Task Modification
CVE-2026-81659 7.1 HIGH Flowintel Note PDF Export Allows Arbitrary Local File Read via Pandoc/XeLaTeX Processing
CVE-2026-81827 6.9 MEDIUM Flowintel Login Email Validation Bypass Allows Log Injection via Crafted Email Input
CVE-2026-81819 5.3 MEDIUM Flowintel Missing Authorization Allows Regular API Users to View Other Users’ Task Assignm
CVE-2026-81814 5.1 MEDIUM Flowintel Stored XSS in Calendar via Malicious Case Title
CVE-2026-81753 5.1 MEDIUM Flowintel Stored XSS in Case Notes via Malicious Mermaid Diagram Content
CVE-2026-81820 5.1 MEDIUM Flowintel HTML Injection in MISP Case History Timeline via Crafted Object Attributes

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-81826

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