VDB
RHSA-2026%3A20571
RHSA-2026%3A20571
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in the Go standard library packages `crypto/x509` and `crypto/tls`. During the process of building a certificate chain, an attacker can provide a large number of intermediate certificates. This excessive input is not properly limited, leading to an uncontrolled amount of work being performed. This can result in a denial of service (DoS) condition, making the affected system or application unavailable to legitimate users.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | skopeo-debuginfo-2:1.18.1-3.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-2:1.18.1-3.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Go | Go | |
| golang | Go | |
| Red Hat | skopeo-debugsource-2:1.18.1-3.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-debugsource-2:1.18.1-3.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| golang | go | |
| Red Hat | skopeo-tests-2:1.18.1-3.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-debuginfo-2:1.18.1-3.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-2:1.18.1-3.el10_0.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-2:1.18.1-3.el10_0.2.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-debuginfo-2:1.18.1-3.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-debugsource-2:1.18.1-3.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-2:1.18.1-3.el10_0.2.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-tests-2:1.18.1-3.el10_0.2.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-debugsource-2:1.18.1-3.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-2:1.18.1-3.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
| Red Hat | skopeo-debuginfo-2:1.18.1-3.el10_0.2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 1.18.1-3.el10, 1.18.1-3.el10, 1.18.1-3.el10 |
…and 2 more
Timeline
- May 26, 2026 CVE Published
- May 28, 2026 Distribution Patch
- May 28, 2026 Distribution Patch
- May 28, 2026 Security Advisory
- May 28, 2026 Security Advisory
- May 28, 2026 Security Advisory
- May 28, 2026 Security Advisory
- Jun 23, 2026 CVE Updated
References
- https://access.redhat.com/errata/RHSA-2026:20571 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2456333 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2456338 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2456339 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_20571.json advisory
- https://access.redhat.com/security/cve/CVE-2026-32280 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-32280 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-32280 advisory
- https://go.dev/cl/758320 advisory
- https://go.dev/issue/78282 advisory
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU advisory
- https://pkg.go.dev/vuln/GO-2026-4947 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://pkg.go.dev/vuln/GO-2026-4946 advisory
- https://access.redhat.com/security/cve/CVE-2026-32283 advisory
…and 5 more