RHSA-2026:66016: osbuild-composer Red Hat

CVSS: 8.2v3.1HighPublished

Published 10-09-2026Last modified 20-10-2026

Open JSON

Vulnerability summary

RHSA-2026:66016 is a high (CVSS 8.2) vulnerability in osbuild-composer Red Hat.

Overall risk

33/100

0100

Medium · default modelHow is this calculated?

CVSS score

8.2/10

010

High · v3.1 (OSV · Red hat), selected by version preference

EPSS score

Not scored

0%100%

No EPSS score yet

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits0No public exploits recorded

Advisory lineage

Upstream 10 · Downstream 0 · Related 8

CVE-2024-45336 CVE-2024-9355 CVE-2026-33818 CVE-2026-39820 CVE-2026-39821 CVE-2026-56853+4 more

Timeline

10-09-2026
PublishedVulnerability first disclosed.
20-10-2026
Last modifiedVulnerability information updated.

Description

Red Hat Security Advisory: osbuild-composer security update

CVSS metrics

1 score · 1 source · 1 version

v3.18.2

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Redhat8 products

osbuild-composer< 0:101.5-2.el8_10
osbuild-composer-core< 0:101.5-2.el8_10
osbuild-composer-core-debuginfo< 0:101.5-2.el8_10
osbuild-composer-debuginfo< 0:101.5-2.el8_10
osbuild-composer-debugsource< 0:101.5-2.el8_10

Show all 8

1 vendor · 8 products

References

73 links

Show all 73 references

bugzilla.redhat.com/show_bug.cgi?id=2515839REPORT
bugzilla.redhat.com/show_bug.cgi?id=2515840REPORT
security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_66016.jsonAdvisory
access.redhat.com/security/cve/CVE-2024-9355REPORT
www.cve.org/CVERecord?id=CVE-2024-9355Advisory
nvd.nist.gov/vuln/detail/CVE-2024-9355Advisory
github.com/golang-fips/openssl/pull/198ARTICLE
access.redhat.com/security/cve/CVE-2024-45336REPORT
www.cve.org/CVERecord?id=CVE-2024-45336Advisory
nvd.nist.gov/vuln/detail/CVE-2024-45336Advisory
github.com/golang/go/issues/70530ARTICLE
groups.google.com/g/golang-announce/c/sSaUhLA-2SIARTICLE
access.redhat.com/security/cve/CVE-2026-33818REPORT
www.cve.org/CVERecord?id=CVE-2026-33818Advisory
nvd.nist.gov/vuln/detail/CVE-2026-33818Advisory
go.dev/cl/814980ARTICLE
go.dev/issue/80405ARTICLE
groups.google.com/g/golang-announce/c/94pEornpRlIARTICLE
pkg.go.dev/vuln/GO-2026-5972Advisory
access.redhat.com/security/cve/CVE-2026-39820REPORT
www.cve.org/CVERecord?id=CVE-2026-39820Advisory
nvd.nist.gov/vuln/detail/CVE-2026-39820Advisory
go.dev/cl/759940ARTICLE
go.dev/issue/78566ARTICLE
groups.google.com/g/golang-announce/c/qcCIEXso47MARTICLE
pkg.go.dev/vuln/GO-2026-4986Advisory
access.redhat.com/security/cve/CVE-2026-39821REPORT
www.cve.org/CVERecord?id=CVE-2026-39821Advisory
nvd.nist.gov/vuln/detail/CVE-2026-39821Advisory
go.dev/cl/767220ARTICLE
go.dev/issue/78760ARTICLE
groups.google.com/g/golang-announce/c/iI-mYSI0lu8ARTICLE
pkg.go.dev/vuln/GO-2026-5026Advisory
access.redhat.com/security/cve/CVE-2026-56853REPORT
www.cve.org/CVERecord?id=CVE-2026-56853Advisory
nvd.nist.gov/vuln/detail/CVE-2026-56853Advisory
go.dev/cl/795540ARTICLE
go.dev/issue/80205ARTICLE
pkg.go.dev/vuln/GO-2026-6089Advisory
access.redhat.com/security/cve/CVE-2026-56858REPORT
www.cve.org/CVERecord?id=CVE-2026-56858Advisory
nvd.nist.gov/vuln/detail/CVE-2026-56858Advisory
go.dev/cl/807100ARTICLE
go.dev/issue/80435ARTICLE
pkg.go.dev/vuln/GO-2026-6091Advisory
access.redhat.com/security/cve/CVE-2026-56859REPORT
www.cve.org/CVERecord?id=CVE-2026-56859Advisory
nvd.nist.gov/vuln/detail/CVE-2026-56859Advisory
go.dev/cl/803320ARTICLE
go.dev/issue/80481ARTICLE
pkg.go.dev/vuln/GO-2026-6088Advisory
access.redhat.com/security/cve/CVE-2026-56860REPORT
www.cve.org/CVERecord?id=CVE-2026-56860Advisory
nvd.nist.gov/vuln/detail/CVE-2026-56860Advisory
go.dev/cl/803681ARTICLE
go.dev/issue/80494ARTICLE
pkg.go.dev/vuln/GO-2026-6218Advisory
access.redhat.com/security/cve/CVE-2026-56862REPORT
www.cve.org/CVERecord?id=CVE-2026-56862Advisory
nvd.nist.gov/vuln/detail/CVE-2026-56862Advisory
go.dev/cl/804261ARTICLE
go.dev/issue/80528ARTICLE
pkg.go.dev/vuln/GO-2026-6090Advisory