Vulnerability-Lookup

CVE-2026-81826 (GCVE-0-2026-81826)

Vulnerability from cvelistv5 – Published: 2026-08-27 13:32 – Updated: 2026-08-27 19:34

Title

Flowintel Fails to Invalidate Active Sessions After Password Change

Summary

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

Severity

9.1 (Critical)


                        
                          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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-27 19:34 UTC

CWE

CWE-613 - Insufficient Session Expiration
CWE-384 - Session Fixation

Assigner

CIRCL ENISA root

References

1 reference

URL	Tags
https://github.com/flowintel/flowintel/commit/e46…	patch

Impacted products

1 product

Vendor	Product	Version	CPE status
flowintel	flowintel	Affected: 0 , ≤ 3.3.0 (semver)	guessed

Credits

Jeroen Pinoy David Cruciani

Show details on NVD website

JSON

To clipboard

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}

FKIE_CVE-2026-81826

Vulnerability from fkie_nvd - Published: 2026-08-27 17:21 - Updated: 2026-08-27 20:18

Severity

9.1 (Critical) - 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

Summary

References

	URL	Tags
	5a6e4751-2f3f-4070-9419-94fb35b644e8	https://github.com/flowintel/flowintel/commit/e46e075b8f28212800fc57ead0a7f9a2921bfff0.patch

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "flowintel",
          "repo": "https://github.com/flowintel/flowintel",
          "vendor": "flowintel",
          "versions": [
            {
              "lessThanOrEqual": "3.3.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8"
    }
  ],
  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "Affected versions of Flowintel do not revoke existing authenticated sessions when a user\u2019s password is changed.\n\n\nThis means that if an attacker already possesses a valid session\u2014for example, from prior access or a stolen session token\u2014the victim changing their password does not terminate that attacker\u2019s access. The session remains usable until it expires naturally. The upstream commit describes this directly as:\n\n\n\u201csession keeps working until it expires.\u201d\n\nThe 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().\n\nVersion impacted \u003e=3.3.0"
    }
  ],
  "id": "CVE-2026-81826",
  "lastModified": "2026-08-27T20:18:56.280",
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          "confidentialityRequirement": "NOT_DEFINED",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
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}

GHSA-M2JR-93W5-4C48

Vulnerability from github – Published: 2026-08-27 18:32 – Updated: 2026-08-27 18:32

Details

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

Severity

9.1 (Critical)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-81826"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-384"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-27T17:21:05Z",
    "severity": "CRITICAL"
  },
  "details": "Affected versions of Flowintel do not revoke existing authenticated sessions when a user\u2019s password is changed.\n\n\nThis means that if an attacker already possesses a valid session\u2014for example, from prior access or a stolen session token\u2014the victim changing their password does not terminate that attacker\u2019s access. The session remains usable until it expires naturally. The upstream commit describes this directly as:\n\n\n\u201csession keeps working until it expires.\u201d\n\nThe 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().\n\nVersion impacted \u003e=3.3.0",
  "id": "GHSA-m2jr-93w5-4c48",
  "modified": "2026-08-27T18:32:30Z",
  "published": "2026-08-27T18:32:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81826"
    },
    {
      "type": "WEB",
      "url": "https://github.com/flowintel/flowintel/commit/e46e075b8f28212800fc57ead0a7f9a2921bfff0.patch"
    }
  ],
  "schema_version": "1.4.0",
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      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-81826 (GCVE-0-2026-81826)

FKIE_CVE-2026-81826

GHSA-M2JR-93W5-4C48

Tags

Sightings

Nomenclature