VDB
RHSA-2026%3A26054
RHSA-2026%3A26054
PUBLISHED
CVSS 5.900000095367432 MEDIUM
A flaw was found in Go's `crypto/x509` package. A remote attacker could exploit this by presenting a specially crafted certificate chain containing a large number of policy mappings. This inefficient validation process consumes excessive resources, which can lead to a denial of service (DoS) for applications or systems performing certificate validation.
Risk Scores
CVSS 3.1
5.900000095367432
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | osbuild-composer-tests-debuginfo-0:132.2-8.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-debugsource-0:132.2-8.el9_6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-worker-0:132.2-8.el9_6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-core-0:132.2-8.el9_6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-0:132.2-8.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-worker-0:132.2-8.el9_6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-debuginfo-0:132.2-8.el9_6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-debugsource-0:132.2-8.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-debuginfo-0:132.2-8.el9_6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-worker-debuginfo-0:132.2-8.el9_6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-core-debuginfo-0:132.2-8.el9_6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer | |
| Red Hat | osbuild-composer-worker-debuginfo-0:132.2-8.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-worker-0:132.2-8.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Go | crypto/x509 | |
| Red Hat | osbuild-composer-debugsource-0:132.2-8.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-debuginfo-0:132.2-8.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
| Red Hat | osbuild-composer-core-0:132.2-8.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 132.2-8.el9, 132.2-8.el9, 132.2-8.el9 |
…and 18 more
Timeline
- Jun 15, 2026 CVE Published
- Jun 16, 2026 Distribution Patch
- Jun 16, 2026 Distribution Patch
- Jun 16, 2026 Security Advisory
- Jun 16, 2026 Security Advisory
- Jun 16, 2026 Security Advisory
- Jul 3, 2026 CVE Updated
References
- https://access.redhat.com/errata/RHSA-2026:26054 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2455470 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2456333 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_26054.json advisory
- https://access.redhat.com/security/cve/CVE-2026-32281 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-32281 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-32281 advisory
- https://go.dev/cl/758061 advisory
- https://go.dev/issue/78281 advisory
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU advisory
- https://pkg.go.dev/vuln/GO-2026-4946 advisory
- https://access.redhat.com/security/cve/CVE-2026-34986 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-34986 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-34986 advisory
- https://github.com/go-jose/go-jose/security/advisories/GHSA-78h2-9frx-2jm8 advisory
- https://pkg.go.dev/github.com/go-jose/go-jose/v4#pkg-constants advisory