TI-2016-07847 Aliases CVE-2016-9643 GHSA-4mcp-j554-p27j

The regex code in Webkit 2.4.11 allows remote attackers to cause a denial of service…

LOW 38CWE-400Published 2017-03-07 · Updated 2024-08-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

The regex code in Webkit 2.4.11 allows remote attackers to cause a denial of service (memory consumption) as demonstrated in a large number of ($ (open parenthesis and dollar) followed by {-2,16} and a large number of +) (plus close parenthesis).

Why it matters now

EPSS 0.02665 85th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:webkit:webkit:2.4.11:::::::*	2.4.11	Vulnerable	WebKit

cpe:2.3:a:webkit:webkit:2.4.11:*:*:*:*:*:*:* Versions 2.4.11 Vulnerable ·WebKit

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2016-9643
2026-10-03 Alias added: GHSA-4mcp-j554-p27j

References

Advisory 3

TI-2010-01691 Off-by-one error in the WebSocketHandshake::readServerHandshake function in… CVSS 2.0HIGH 7.5
TI-2009-03730 WebKit before r50173, as used in Google Chrome before 3.0.195.32, allows remote attackers… CVSS 2.0MEDIUM 5.0
TI-2016-07846 JavaScriptCore in WebKit allows attackers to cause a denial of service (out-of-bounds… CVSS 3.0MEDIUM 5.5
TI-2008-05754 xml/XMLHttpRequest.cpp in WebCore in WebKit before r38566 does not properly restrict… CVSS 2.0MEDIUM 5.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences