{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-101041", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-09-27T14:47:50.804Z", "datePublished": "2026-09-27T14:47:57.012Z", "dateUpdated": "2026-09-29T15:28:11.374Z"}, "containers": {"cna": {"affected": [{"modules": ["website/models/user.py", "website/web/views/user.py", "website/lib/user_utils.py"], "product": "vulnerability-lookup", "programFiles": ["website/models/user.py", "website/web/views/user.py", "website/lib/user_utils.py"], "repo": "https://github.com/vulnerability-lookup/vulnerability-lookup", "vendor": "vulnerability-lookup", "versions": [{"lessThanOrEqual": "6.2.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "remediation developer", "value": "Alexandre Dulaunoy"}, {"lang": "en", "type": "remediation developer", "value": "C\u00e9dric Bonhomme"}, {"lang": "en", "type": "remediation developer", "value": "Claude Fable 5.1"}, {"lang": "en", "type": "finder", "value": "avrlab233"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The account recovery (password reset) functionality in the vulnerability-lookup web application contains a time-of-check-to-time-of-use (TOCTOU) race condition in the consumption of single-use recovery tokens. The original implementation verified the token nonce against the stored digest and then consumed (cleared) it in separate database operations. Two concurrent HTTP requests presenting the same valid recovery token could both pass the verification check before either transaction committed, allowing both to set their own password on the target account. The last transaction to commit overwrites the first, enabling an attacker who possesses a valid recovery token to replace the legitimate user's password with one of their choosing.</p><p>A secondary defect in the same endpoint (confirm_account) allowed a valid recovery link to be used to set an empty or trivially short password (e.g., three characters). The view handler performed only a manual equality comparison between the two password fields and never invoked the form's validation logic, bypassing the intended minimum-length and complexity constraints.</p><p>The affected component is the user account recovery endpoint (/user/confirm_account/&lt;token&gt;) and the associated token verification and consumption logic in the User model (website/models/user.py) and the view layer (website/web/views/user.py).</p>"}], "value": "The account recovery (password reset) functionality in the vulnerability-lookup web application contains a time-of-check-to-time-of-use (TOCTOU) race condition in the consumption of single-use recovery tokens. The original implementation verified the token nonce against the stored digest and then consumed (cleared) it in separate database operations. Two concurrent HTTP requests presenting the same valid recovery token could both pass the verification check before either transaction committed, allowing both to set their own password on the target account. The last transaction to commit overwrites the first, enabling an attacker who possesses a valid recovery token to replace the legitimate user's password with one of their choosing.\n\nA secondary defect in the same endpoint (confirm_account) allowed a valid recovery link to be used to set an empty or trivially short password (e.g., three characters). The view handler performed only a manual equality comparison between the two password fields and never invoked the form's validation logic, bypassing the intended minimum-length and complexity constraints.\n\nThe affected component is the user account recovery endpoint (/user/confirm_account/<token>) and the associated token verification and consumption logic in the User model (website/models/user.py) and the view layer (website/web/views/user.py)."}], "impacts": [{"capecId": "CAPEC-111", "descriptions": [{"lang": "en", "value": "CAPEC-111 Race Condition"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 6.3, "baseSeverity": "MEDIUM", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-362", "description": "CWE-362 Concurrency: Race Condition", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-27T14:47:57.012Z"}, "references": [{"name": "Security patch", "tags": ["patch"], "url": "https://github.com/vulnerability-lookup/vulnerability-lookup/commit/5462bab62d76df852619e01eb67da36c023c8c40"}, {"name": "Security patch", "tags": ["patch"], "url": "https://github.com/vulnerability-lookup/vulnerability-lookup/commit/ad6f22882975516adf193a1a920aaa54025c71d4"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The non-atomic check-then-consume pattern is replaced with a single conditional UPDATE statement (compare-and-set) that atomically verifies the stored SHA-256 nonce digest, updates the password hash, sets is_confirmed, and clears the token in one database operation. Only the first transaction to commit succeeds; all concurrent attempts match zero rows and are rejected with an error. The view now calls form.validate() before processing the password change, enforcing the form's length and equality validators. The dead consume_account_token() method is removed to eliminate the non-atomic consumption path entirely.</p>"}], "value": "The non-atomic check-then-consume pattern is replaced with a single conditional UPDATE statement (compare-and-set) that atomically verifies the stored SHA-256 nonce digest, updates the password hash, sets is_confirmed, and clears the token in one database operation. Only the first transaction to commit succeeds; all concurrent attempts match zero rows and are rejected with an error. The view now calls form.validate() before processing the password change, enforcing the form's length and equality validators. The dead consume_account_token() method is removed to eliminate the non-atomic consumption path entirely."}], "title": "Vulnerability-Lookup - Race Condition in Account Recovery Token Consumption Allows Password Takeover", "x_gcve": [{"extensions": {"bcp-05-x-01": {"ai_annotations": [{"ai_level": "generated", "description": "Draft vulnerability metadata was generated from a git-format patch using an Ollama-hosted language model. 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PR:N: no prior authentication is needed; the recovery token itself is the credential. UI:N: no user interaction is required. VC:N: the vulnerability does not directly expose confidential data. VI:H: the integrity of the user's password (a critical credential) is directly compromised. VA:N: no availability impact. SC:N: the impact is confined to the vulnerable component. SI:H: the integrity of the user's account (password, confirmation state) is compromised, affecting the user's ability to access their own account. SA:N: no security-authority impact.", "fixSummary": "The non-atomic check-then-consume pattern is replaced with a single conditional UPDATE statement (compare-and-set) that atomically verifies the stored SHA-256 nonce digest, updates the password hash, sets is_confirmed, and clears the token in one database operation. Only the first transaction to commit succeeds; all concurrent attempts match zero rows and are rejected with an error. 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{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-101041", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-29T15:25:10.617891Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-29T15:26:29.914Z"}}], "cna": {"title": "Vulnerability-Lookup - Race Condition in Account Recovery Token Consumption Allows Password Takeover", "x_gcve": [{"vulnId": "gcve-1-2026-20252", "extensions": {"bcp-05-x-01": {"ai_annotations": [{"tags": ["ai-computer-assisted:llm-generated", "ai-computer-assisted:classification"], "scope": "record", "models": [{"name": "qwen3.8:27b", "source": "ollama", "gna_source": 1, "identifier": "qwen3.8:27b"}], "ai_level": "generated", "gna_source": 1, "description": "Draft vulnerability metadata was generated from a git-format patch using an Ollama-hosted language model. 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Only the first transaction to commit succeeds; all concurrent attempts match zero rows and are rejected with an error. The view now calls form.validate() before processing the password change, enforcing the form's length and equality validators. 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Only the first transaction to commit succeeds; all concurrent attempts match zero rows and are rejected with an error. The view now calls form.validate() before processing the password change, enforcing the form's length and equality validators. The dead consume_account_token() method is removed to eliminate the non-atomic consumption path entirely.", "supportingMedia": [{"type": "text/html", "value": "<p>The non-atomic check-then-consume pattern is replaced with a single conditional UPDATE statement (compare-and-set) that atomically verifies the stored SHA-256 nonce digest, updates the password hash, sets is_confirmed, and clears the token in one database operation. Only the first transaction to commit succeeds; all concurrent attempts match zero rows and are rejected with an error. The view now calls form.validate() before processing the password change, enforcing the form's length and equality validators. The dead consume_account_token() method is removed to eliminate the non-atomic consumption path entirely.</p>", "base64": false}]}], "references": [{"url": "https://github.com/vulnerability-lookup/vulnerability-lookup/commit/5462bab62d76df852619e01eb67da36c023c8c40", "name": "Security patch", "tags": ["patch"]}, {"url": "https://github.com/vulnerability-lookup/vulnerability-lookup/commit/ad6f22882975516adf193a1a920aaa54025c71d4", "name": "Security patch", "tags": ["patch"]}], "descriptions": [{"lang": "en", "value": "The account recovery (password reset) functionality in the vulnerability-lookup web application contains a time-of-check-to-time-of-use (TOCTOU) race condition in the consumption of single-use recovery tokens. The original implementation verified the token nonce against the stored digest and then consumed (cleared) it in separate database operations. Two concurrent HTTP requests presenting the same valid recovery token could both pass the verification check before either transaction committed, allowing both to set their own password on the target account. The last transaction to commit overwrites the first, enabling an attacker who possesses a valid recovery token to replace the legitimate user's password with one of their choosing.\n\nA secondary defect in the same endpoint (confirm_account) allowed a valid recovery link to be used to set an empty or trivially short password (e.g., three characters). The view handler performed only a manual equality comparison between the two password fields and never invoked the form's validation logic, bypassing the intended minimum-length and complexity constraints.\n\nThe affected component is the user account recovery endpoint (/user/confirm_account/<token>) and the associated token verification and consumption logic in the User model (website/models/user.py) and the view layer (website/web/views/user.py).", "supportingMedia": [{"type": "text/html", "value": "<p>The account recovery (password reset) functionality in the vulnerability-lookup web application contains a time-of-check-to-time-of-use (TOCTOU) race condition in the consumption of single-use recovery tokens. The original implementation verified the token nonce against the stored digest and then consumed (cleared) it in separate database operations. Two concurrent HTTP requests presenting the same valid recovery token could both pass the verification check before either transaction committed, allowing both to set their own password on the target account. The last transaction to commit overwrites the first, enabling an attacker who possesses a valid recovery token to replace the legitimate user's password with one of their choosing.</p><p>A secondary defect in the same endpoint (confirm_account) allowed a valid recovery link to be used to set an empty or trivially short password (e.g., three characters). The view handler performed only a manual equality comparison between the two password fields and never invoked the form's validation logic, bypassing the intended minimum-length and complexity constraints.</p><p>The affected component is the user account recovery endpoint (/user/confirm_account/&lt;token&gt;) and the associated token verification and consumption logic in the User model (website/models/user.py) and the view layer (website/web/views/user.py).</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-362", "description": "CWE-362 Concurrency: Race Condition"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-20", "description": "CWE-20 Improper Input Validation"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-27T14:47:57.012Z"}}}, "cveMetadata": {"cveId": "CVE-2026-101041", "state": "PUBLISHED", "dateUpdated": "2026-09-29T15:28:11.374Z", "dateReserved": "2026-09-27T14:47:50.804Z", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "datePublished": "2026-09-27T14:47:57.012Z", "assignerShortName": "CIRCL"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"modules": ["website/models/user.py", "website/web/views/user.py", "website/lib/user_utils.py"], "product": "vulnerability-lookup", "programFiles": ["website/models/user.py", "website/web/views/user.py", "website/lib/user_utils.py"], "repo": "https://github.com/vulnerability-lookup/vulnerability-lookup", "vendor": "vulnerability-lookup", "versions": [{"lessThanOrEqual": "6.2.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The account recovery (password reset) functionality in the vulnerability-lookup web application contains a time-of-check-to-time-of-use (TOCTOU) race condition in the consumption of single-use recovery tokens. The original implementation verified the token nonce against the stored digest and then consumed (cleared) it in separate database operations. Two concurrent HTTP requests presenting the same valid recovery token could both pass the verification check before either transaction committed, allowing both to set their own password on the target account. The last transaction to commit overwrites the first, enabling an attacker who possesses a valid recovery token to replace the legitimate user's password with one of their choosing.\n\nA secondary defect in the same endpoint (confirm_account) allowed a valid recovery link to be used to set an empty or trivially short password (e.g., three characters). The view handler performed only a manual equality comparison between the two password fields and never invoked the form's validation logic, bypassing the intended minimum-length and complexity constraints.\n\nThe affected component is the user account recovery endpoint (/user/confirm_account/<token>) and the associated token verification and consumption logic in the User model (website/models/user.py) and the view layer (website/web/views/user.py)."}], "id": "CVE-2026-101041", "lastModified": "2026-09-29T16:17:05.510", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-101041", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-29T15:25:10.617891Z", "version": "2.0.3"}}]}, "published": "2026-09-27T15:16:27.190", "references": [{"source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "url": "https://github.com/vulnerability-lookup/vulnerability-lookup/commit/5462bab62d76df852619e01eb67da36c023c8c40"}, {"source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "url": "https://github.com/vulnerability-lookup/vulnerability-lookup/commit/ad6f22882975516adf193a1a920aaa54025c71d4"}], "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-362"}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}]}

{}