Bug 2563651 (CVE-2026-118778)

Summary:	CVE-2026-118778 node-forge: node-forge: Denial of Service via missing TLS server certificate
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abarbaro, alizardo, amctagga, aoconnor, bbrownin, bniver, cdrage, csuconic, dbruscin, dhanak, doconnor, drosa, dschmidt, dsimansk, flucifre, fmariani, gmalinko, gmeno, groman, gtully, ikhan, janstey, jchui, jhe, jlanda, jsherman, jwon, kaycoth, kingland, kshier, ktsao, kvanderr, lchilton, mbenjamin, mcarlett, mhackett, mnovotny, nboldt, oaljalju, pdelbell, pjindal, psrna, rbobbitt, rgemmell, rgodfrey, rhel-process-autobot, rstepani, rushinde, sausingh, sfeifer, simaishi, sostapov, stcannon, tbish, tcunning, tlavocat, vereddy, watson-tool-maintainers, yfang, yguenane
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in node-forge. The Transport Layer Security (TLS) client improperly validates whether a server certificate was provided during the handshake. A malicious server or an on-path attacker can exploit this flaw by omitting the certificate message, triggering an uncaught exception that crashes the application and results in a Denial of Service (DoS).	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-10-29 19:20:28 UTC

Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, the affected implementation used forge.tls.createConnection(), c.session.serverCertificate, RSA key exchange to process the relevant input or security decision. node-forge's TLS client checked the wrong property when deciding whether a server certificate was missing. A malicious TLS server or on-path peer could omit the Certificate message and reach code that dereferenced the absent certificate, causing an uncaught exception and terminating the connection or process. This issue is fixed in version 1.4.1.