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Vulnerability details: VCID-3nt4-689k-qkan
Vulnerability ID VCID-3nt4-689k-qkan
Aliases CVE-2015-8854
GHSA-hjcp-j389-59ff
Summary Regular Expression Denial of Service Marked 0.3.3 and earlier is vulnerable to regular expression denial of service (ReDoS) when certain types of input are passed in to be parsed. "The Regular expression Denial of Service (ReDoS) is a Denial of Service attack, that exploits the fact that most Regular Expression implementations may reach extreme situations that cause them to work very slowly (exponentially related to input size). An attacker can then cause a program using a Regular Expression to enter these extreme situations and then hang for a very long time." [1] Marked's catastrophic backtracking issue for the `em` inline rule has now been patched in 0.3.4.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-399 Resource Management Errors
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1333 Inefficient Regular Expression Complexity
System Score Found at
epss 0.01098 https://api.first.org/data/v1/epss?cve=CVE-2015-8854
epss 0.01098 https://api.first.org/data/v1/epss?cve=CVE-2015-8854
epss 0.01098 https://api.first.org/data/v1/epss?cve=CVE-2015-8854
epss 0.01098 https://api.first.org/data/v1/epss?cve=CVE-2015-8854
epss 0.01098 https://api.first.org/data/v1/epss?cve=CVE-2015-8854
cvssv3.1 7.5 https://github.com/advisories/GHSA-hjcp-j389-59ff
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-hjcp-j389-59ff
generic_textual HIGH https://github.com/advisories/GHSA-hjcp-j389-59ff
cvssv3.1 7.5 https://github.com/chjj/marked
generic_textual HIGH https://github.com/chjj/marked
cvssv3 7.5 https://github.com/chjj/marked/issues/497
cvssv3.1 7.5 https://github.com/chjj/marked/issues/497
generic_textual HIGH https://github.com/chjj/marked/issues/497
cvssv3 7.5 https://github.com/nodejs/security-wg/blob/main/vuln/npm/23.json
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BO2RMVVZVV6NFTU46B5RYRK7ZCXYARZS
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BO2RMVVZVV6NFTU46B5RYRK7ZCXYARZS
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6BJG6RGDH7ZWVVAUFBFI5L32RSMQN2S
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6BJG6RGDH7ZWVVAUFBFI5L32RSMQN2S
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2015-8854
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2015-8854
cvssv3.1 7.5 https://support.f5.com/csp/article/K05052081?utm_source=f5support&utm_medium=RSS
generic_textual HIGH https://support.f5.com/csp/article/K05052081?utm_source=f5support&utm_medium=RSS
cvssv3.1 7.5 https://www.npmjs.com/advisories/23
generic_textual HIGH https://www.npmjs.com/advisories/23
cvssv3 7.5 https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS
cvssv3.1 7.5 https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS
generic_textual HIGH https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS
cvssv3.1 7.5 http://www.openwall.com/lists/oss-security/2016/04/20/11
generic_textual HIGH http://www.openwall.com/lists/oss-security/2016/04/20/11
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2015-8854
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8854
https://github.com/chjj/marked
https://github.com/chjj/marked/issues/497
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BO2RMVVZVV6NFTU46B5RYRK7ZCXYARZS
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BO2RMVVZVV6NFTU46B5RYRK7ZCXYARZS/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6BJG6RGDH7ZWVVAUFBFI5L32RSMQN2S
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6BJG6RGDH7ZWVVAUFBFI5L32RSMQN2S/
https://nodesecurity.io/advisories/23
https://support.f5.com/csp/article/K05052081?utm_source=f5support&utm_medium=RSS
https://www.npmjs.com/advisories/23
https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS
http://www.openwall.com/lists/oss-security/2016/04/20/11
23 https://github.com/nodejs/security-wg/blob/main/vuln/npm/23.json
CVE-2015-8854 https://nvd.nist.gov/vuln/detail/CVE-2015-8854
GHSA-hjcp-j389-59ff https://github.com/advisories/GHSA-hjcp-j389-59ff
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/advisories/GHSA-hjcp-j389-59ff
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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none

required

unchanged

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low

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/chjj/marked
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

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physical

low

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/chjj/marked/issues/497
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BO2RMVVZVV6NFTU46B5RYRK7ZCXYARZS
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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none

required

unchanged

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6BJG6RGDH7ZWVVAUFBFI5L32RSMQN2S
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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low

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none
Vector: CVSS:3.0/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-2015-8854
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://support.f5.com/csp/article/K05052081?utm_source=f5support&utm_medium=RSS
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.npmjs.com/advisories/23
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS
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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low

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at http://www.openwall.com/lists/oss-security/2016/04/20/11
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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low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.7836
EPSS Score 0.01098
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T03:45:02.130296+00:00 Npm Importer Import https://github.com/nodejs/security-wg/blob/main/vuln/npm/23.json 38.6.0