CVE-2015-5147

redcarpet Buffer Overflow vulnerability

7.5 HighFix available

Stack-based buffer overflow in the header_anchor function in the HTML renderer in Redcarpet before 3.3.2 allows attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

Exploit likelihood

2.54%Down 0.3 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2015-5147
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2015-5147
Updated: 2026-11-02

EUVDEUVD-2018-0377 No score

Record: EUVD-2018-0377
Updated: 2026-11-03

GitHub AdvisoriesGHSA-7322-9mx6-5j2m No score

redcarpet Buffer Overflow vulnerability

Stack-based buffer overflow in the header_anchor function in the HTML renderer in Redcarpet before 3.3.2 allows attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

Record: GHSA-7322-9mx6-5j2m
Weakness: CWE-119
Updated: 2026-11-02

OSVGHSA-7322-9mx6-5j2m No score

redcarpet Buffer Overflow vulnerability

Record: GHSA-7322-9mx6-5j2m
Weakness: CWE-119
Updated: 2026-11-02

Affected products

redcarpet project redcarpet

Affected packages

Affected packages
Package	Affected	Fixed
`redcarpet` RubyGems	3.3.0 up to 3.3.2	3.3.2
`redcarpet` RubyGems	3.3.0 up to 3.3.2, plus listed versions 3.3.1	3.3.2

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-5147 is a high vulnerability (CVSS 7.5) in Redcarpet Project Redcarpet, published July 14, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.54%, the 85th percentile. Fixed in redcarpet 3.3.2.