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Vulnerability details: VCID-bmjp-tau8-bugq
Vulnerability ID VCID-bmjp-tau8-bugq
Aliases CVE-2019-1010083
GHSA-5wv5-4vpf-pj6m
PYSEC-2019-179
Summary The Pallets Project Flask before 1.0 is affected by: unexpected memory usage. The impact is: denial of service. The attack vector is: crafted encoded JSON data. The fixed version is: 1. NOTE: this may overlap CVE-2018-1000656.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-400 Uncontrolled Resource Consumption
CWE-20 Improper Input Validation
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-1010083.json
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00399 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00419 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00419 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
epss 0.00419 https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.5 https://github.com/advisories/GHSA-5wv5-4vpf-pj6m
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-5wv5-4vpf-pj6m
cvssv4 8.7 https://github.com/advisories/GHSA-5wv5-4vpf-pj6m
generic_textual HIGH https://github.com/advisories/GHSA-5wv5-4vpf-pj6m
cvssv3.1 7.5 https://github.com/pallets/flask
cvssv4 8.7 https://github.com/pallets/flask
generic_textual HIGH https://github.com/pallets/flask
cvssv3.1 7.5 https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2019-179.yaml
cvssv4 8.7 https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2019-179.yaml
generic_textual HIGH https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2019-179.yaml
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-1010083
cvssv4 8.7 https://nvd.nist.gov/vuln/detail/CVE-2019-1010083
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2019-1010083
cvssv3.1 7.5 https://www.palletsprojects.com/blog/flask-1-0-released
cvssv4 8.7 https://www.palletsprojects.com/blog/flask-1-0-released
generic_textual HIGH https://www.palletsprojects.com/blog/flask-1-0-released
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-1010083.json
https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1010083
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/advisories/GHSA-5wv5-4vpf-pj6m
https://github.com/pallets/flask
https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2019-179.yaml
https://nvd.nist.gov/vuln/detail/CVE-2019-1010083
https://www.palletsprojects.com/blog/flask-1-0-released
https://www.palletsprojects.com/blog/flask-1-0-released/
1888007 https://bugzilla.redhat.com/show_bug.cgi?id=1888007
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-1010083.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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local

physical

low

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unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/advisories/GHSA-5wv5-4vpf-pj6m
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/advisories/GHSA-5wv5-4vpf-pj6m
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/pallets/flask
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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unchanged

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/pallets/flask
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2019-179.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

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none

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2019-179.yaml
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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none

present

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passive

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-1010083
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

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none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-1010083
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

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high

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.palletsprojects.com/blog/flask-1-0-released
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://www.palletsprojects.com/blog/flask-1-0-released
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

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low

none

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low

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low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.605
EPSS Score 0.00399
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:42:01.934364+00:00 Pypa Importer Import https://github.com/pypa/advisory-database/blob/main/vulns/flask/PYSEC-2019-179.yaml 38.0.0