RHSA-2026:68334: flightctl security update

RHSA-2026:68334, released September 17, 2026, fixes 11 CVEs in flightctl (version 1.1.4-1.el10em). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.1

Base score, 0 to 10

Highest EPSS

0.0080

56th percentile

Priority of the 11 CVEs

Patch now 0
                                Urgent 0
                                High 10
                                Routine 1

Fixed package versions

Product	Release	Fixed in
flightctl	RHEL 10	1.1.4-1.el10em

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-42499	Quadratic string concatenation in consumePhrase in net/mail	8.8	0.0080	None reported
High	CVE-2026-39820	Quadratic string concatentation in consumeComment in net/mail	8.8	0.0078	None reported
High	CVE-2026-42504	Quadratic complexity in WordDecoder.DecodeHeader in mime	8.8	0.0056	None reported
High	CVE-2026-39831	Invoking bypass of FIDO/U2F security keys physical interaction in golang.org/x/crypto/ssh	9.1	0.0048	None reported
High	CVE-2026-46597	Invoking byte arithmetic causes underflow and panic in golang.org/x/crypto/ssh	7.5	0.0047	None reported
High	CVE-2026-33810	Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509	9.1	0.0035	None reported
High	CVE-2026-81521	flightctl: The MongoDB Go Driver's client-level bulk write operation may accept a caller-supplied database name containing a res...	7.5	0.0024	None reported
High	CVE-2026-25681	Invoking incorrect handling of character references in DOCTYPE nodes in golang.org/x/net/html	8.7	0.0022	None reported
High	CVE-2026-27136	Invoking duplicate attributes can cause XSS in golang.org/x/net/html	8.7	0.0022	None reported
High	CVE-2026-42306	docker.io: Moby is an open source container framework	7.2	0.0010	None reported
Routine	CVE-2026-69153	node-postcss: PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstra...	5.3	0.0045	None reported

Also fixes CVE-2026-42499

OPENSUSE-SU-2026:21483-1
govulncheck-vulndb on opensuse-leap 16.0
RHSA-2026:67517
grafana on RHEL 10
RHSA-2026:49702
golang on RHEL 10
ELSA-2026-65534-0
image-builder on ol 10
RHSA-2026:65534
image-builder on RHEL 10
RLSA-2026:65534
image-builder on rocky 10
RHSA-2026:65886
image-builder on RHEL 9
ELSA-2026-65886-0
image-builder on ol 9

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:68334

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