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Vulnerability details: VCID-5buj-b91g-3fd8
Vulnerability ID VCID-5buj-b91g-3fd8
Aliases CVE-2020-36649
GHSA-qvjc-g5vr-mfgr
GMS-2020-421
Summary Regular Expression Denial of Service in papaparse Versions of `papaparse` prior to 5.2.0 are vulnerable to Regular Expression Denial of Service (ReDos). The `parse` function contains a malformed regular expression that takes exponentially longer to process non-numerical inputs. This allows attackers to stall systems and lead to Denial of Service. ## Recommendation Upgrade to version 5.2.0 or later.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-185 Incorrect Regular Expression
CWE-1333 Inefficient Regular Expression Complexity
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-2020-36649.json
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00079 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00082 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
epss 0.00092 https://api.first.org/data/v1/epss?cve=CVE-2020-36649
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-qvjc-g5vr-mfgr
cvssv3.1 7.5 https://github.com/mholt/PapaParse
generic_textual HIGH https://github.com/mholt/PapaParse
cvssv3.1 7.5 https://github.com/mholt/PapaParse/commit/235a12758cd77266d2e98fd715f53536b34ad621
generic_textual HIGH https://github.com/mholt/PapaParse/commit/235a12758cd77266d2e98fd715f53536b34ad621
cvssv3.1 7.5 https://github.com/mholt/PapaParse/issues/777
generic_textual HIGH https://github.com/mholt/PapaParse/issues/777
cvssv3.1 7.5 https://github.com/mholt/PapaParse/pull/779
generic_textual HIGH https://github.com/mholt/PapaParse/pull/779
cvssv3.1 7.5 https://github.com/mholt/PapaParse/releases/tag/5.2.0
generic_textual HIGH https://github.com/mholt/PapaParse/releases/tag/5.2.0
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-36649
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2020-36649
cvssv3.1 7.5 https://snyk.io/vuln/SNYK-JS-PAPAPARSE-564258
generic_textual HIGH https://snyk.io/vuln/SNYK-JS-PAPAPARSE-564258
cvssv3.1 7.5 https://vuldb.com/?ctiid.218004
generic_textual HIGH https://vuldb.com/?ctiid.218004
cvssv3.1 7.5 https://vuldb.com/?id.218004
generic_textual HIGH https://vuldb.com/?id.218004
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-36649.json
https://api.first.org/data/v1/epss?cve=CVE-2020-36649
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36649
https://github.com/mholt/PapaParse
https://github.com/mholt/PapaParse/commit/235a12758cd77266d2e98fd715f53536b34ad621
https://github.com/mholt/PapaParse/issues/777
https://github.com/mholt/PapaParse/pull/779
https://github.com/mholt/PapaParse/releases/tag/5.2.0
https://nvd.nist.gov/vuln/detail/CVE-2020-36649
https://snyk.io/vuln/SNYK-JS-PAPAPARSE-564258
https://vuldb.com/?ctiid.218004
https://vuldb.com/?id.218004
https://www.npmjs.com/advisories/1515
2160359 https://bugzilla.redhat.com/show_bug.cgi?id=2160359
cpe:2.3:a:papaparse:papaparse:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:papaparse:papaparse:*:*:*:*:*:*:*:*
GHSA-qvjc-g5vr-mfgr https://github.com/advisories/GHSA-qvjc-g5vr-mfgr
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-2020-36649.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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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/mholt/PapaParse
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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low

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none

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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/mholt/PapaParse/commit/235a12758cd77266d2e98fd715f53536b34ad621
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

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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://github.com/mholt/PapaParse/issues/777
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

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required

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://github.com/mholt/PapaParse/pull/779
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/mholt/PapaParse/releases/tag/5.2.0
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: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-2020-36649
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://snyk.io/vuln/SNYK-JS-PAPAPARSE-564258
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://vuldb.com/?ctiid.218004
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://vuldb.com/?id.218004
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

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none
Exploit Prediction Scoring System (EPSS)
Percentile 0.24336
EPSS Score 0.00079
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:46:36.352996+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/09/GHSA-qvjc-g5vr-mfgr/GHSA-qvjc-g5vr-mfgr.json 37.0.0