GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

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

Vulnerability from cvelistv5 – Published: 2026-08-27 13:32 – Updated: 2026-08-27 19:34
VLAI
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
References
Impacted products
Vendor Product Version CPE status
flowintel flowintel Affected: 0 , ≤ 3.3.0 (semver)
guessed Create a notification for this product.
Credits
Jeroen Pinoy David Cruciani
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-81826",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-27T19:34:42.494479Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-27T19:34:55.872Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "flowintel",
          "repo": "https://github.com/flowintel/flowintel",
          "vendor": "flowintel",
          "versions": [
            {
              "lessThanOrEqual": "3.3.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Jeroen Pinoy"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "David Cruciani"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eAffected versions of Flowintel do not revoke existing authenticated sessions when a user\u2019s password is changed.\u003c/p\u003e\n\u003cp\u003eThis 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:\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u201csession keeps working until it expires.\u201d\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eThe fix detects password changes and explicitly invokes \u003ccode\u003e_invalidate_user_sessions(user.id)\u003c/code\u003e after the database update. This is applied in both \u003ccode\u003eedit_user_core()\u003c/code\u003e and \u003ccode\u003eadmin_edit_user_core()\u003c/code\u003e.\u003c/p\u003eVersion impacted \u0026gt;=3.3.0"
            }
          ],
          "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"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-196",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-196 Session Credential Falsification through Forging"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-613",
              "description": "CWE-613 Insufficient Session Expiration",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-384",
              "description": "CWE-384 Session Fixation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-27T13:32:48.355Z",
        "orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
        "shortName": "CIRCL"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/flowintel/flowintel/commit/e46e075b8f28212800fc57ead0a7f9a2921bfff0.patch"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Flowintel Fails to Invalidate Active Sessions After Password Change",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
    "assignerShortName": "CIRCL",
    "cveId": "CVE-2026-81826",
    "datePublished": "2026-08-27T13:32:48.355Z",
    "dateReserved": "2026-08-27T13:32:44.194Z",
    "dateUpdated": "2026-08-27T19:34:55.872Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-81826",
      "date": "2026-09-17",
      "epss": "0.00329",
      "percentile": "0.26129"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-81826\",\"sourceIdentifier\":\"5a6e4751-2f3f-4070-9419-94fb35b644e8\",\"published\":\"2026-08-27T17:21:05.770\",\"lastModified\":\"2026-08-28T15:28:32.763\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"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\"}],\"affected\":[{\"source\":\"5a6e4751-2f3f-4070-9419-94fb35b644e8\",\"affectedData\":[{\"vendor\":\"flowintel\",\"product\":\"flowintel\",\"defaultStatus\":\"unaffected\",\"repo\":\"https://github.com/flowintel/flowintel\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"3.3.0\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"5a6e4751-2f3f-4070-9419-94fb35b644e8\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"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\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-27T19:34:42.494479Z\",\"id\":\"CVE-2026-81826\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"5a6e4751-2f3f-4070-9419-94fb35b644e8\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-384\"},{\"lang\":\"en\",\"value\":\"CWE-613\"}]}],\"references\":[{\"url\":\"https://github.com/flowintel/flowintel/commit/e46e075b8f28212800fc57ead0a7f9a2921bfff0.patch\",\"source\":\"5a6e4751-2f3f-4070-9419-94fb35b644e8\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-81826\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-27T19:34:42.494479Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-27T19:34:50.392Z\"}}], \"cna\": {\"title\": \"Flowintel Fails to Invalidate Active Sessions After Password Change\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Jeroen Pinoy\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"David Cruciani\"}], \"impacts\": [{\"capecId\": \"CAPEC-196\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-196 Session Credential Falsification through Forging\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 9.1, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"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\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://github.com/flowintel/flowintel\", \"vendor\": \"flowintel\", \"product\": \"flowintel\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"3.3.0\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/flowintel/flowintel/commit/e46e075b8f28212800fc57ead0a7f9a2921bfff0.patch\", \"tags\": [\"patch\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.2.0\"}, \"descriptions\": [{\"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\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eAffected versions of Flowintel do not revoke existing authenticated sessions when a user\\u2019s password is changed.\u003c/p\u003e\\n\u003cp\u003eThis 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:\u003c/p\u003e\\n\u003cp\u003e\u003cstrong\u003e\\u201csession keeps working until it expires.\\u201d\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eThe fix detects password changes and explicitly invokes \u003ccode\u003e_invalidate_user_sessions(user.id)\u003c/code\u003e after the database update. This is applied in both \u003ccode\u003eedit_user_core()\u003c/code\u003e and \u003ccode\u003eadmin_edit_user_core()\u003c/code\u003e.\u003c/p\u003eVersion impacted \u0026gt;=3.3.0\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-613\", \"description\": \"CWE-613 Insufficient Session Expiration\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-384\", \"description\": \"CWE-384 Session Fixation\"}]}], \"providerMetadata\": {\"orgId\": \"5a6e4751-2f3f-4070-9419-94fb35b644e8\", \"shortName\": \"CIRCL\", \"dateUpdated\": \"2026-08-27T13:32:48.355Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-81826\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-27T19:34:55.872Z\", \"dateReserved\": \"2026-08-27T13:32:44.194Z\", \"assignerOrgId\": \"5a6e4751-2f3f-4070-9419-94fb35b644e8\", \"datePublished\": \"2026-08-27T13:32:48.355Z\", \"assignerShortName\": \"CIRCL\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.