CVE-2026-27138
Medium · 5.9CVSS
5.9
EPSS
0.3%
Published
Mar 6, 2026
CISA due date
—
The record
Certificate verification can panic when a certificate in the chain has an empty DNS name and another certificate in the chain has excluded name constraints. This can crash programs that are either directly verifying X.509 certificate chains, or those that use TLS.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Chainguard | amazon-k8s-cni-fips | 0 | 1.22.0-r1 |
| Chainguard | amazon-k8s-cni-init-fips | 0 | 1.22.0-r1 |
| Chainguard | aws-ebs-csi-driver-1.56 | 0 | 1.56.0-r3 |
| Chainguard | aws-ebs-csi-driver-fips-1.56 | 0 | 1.56.0-r3 |
| Chainguard | aws-load-balancer-controller-fips | 0 | 3.1.0-r1 |
| Chainguard | boringssl-fips-static-2023042800-tools | 0 | 0 |
| Chainguard | boringssl-fips-static-20240407-tools | 0 | 0 |
| Chainguard | cert-manager-acmesolver-fips-1.18 | 0 | 1.18.6-r1 |
| Chainguard | cert-manager-acmesolver-fips-1.19 | 0 | 1.19.4-r1 |
| Chainguard | cert-manager-cainjector-fips-1.18 | 0 | 1.18.6-r1 |
| Chainguard | cert-manager-cainjector-fips-1.19 | 0 | 1.19.4-r1 |
| Chainguard | cert-manager-controller-fips-1.18 | 0 | 1.18.6-r1 |
| Chainguard | cert-manager-controller-fips-1.19 | 0 | 1.19.4-r1 |
| Chainguard | cert-manager-fips-1.18 | 0 | 1.18.6-r1 |
| Chainguard | cert-manager-fips-1.19 | 0 | 1.19.4-r1 |
| Chainguard | cert-manager-startupapicheck-fips-1.18 | 0 | 1.18.6-r1 |
| Chainguard | cert-manager-startupapicheck-fips-1.19 | 0 | 1.19.4-r1 |
| Chainguard | cert-manager-webhook-fips-1.18 | 0 | 1.18.6-r1 |
| Chainguard | cert-manager-webhook-fips-1.19 | 0 | 1.19.4-r1 |
| Chainguard | chainguard-partners-demo | 0 | 0 |
| Chainguard | cluster-autoscaler-fips-1.35 | 0 | 1.35.0-r0 |
| Chainguard | flux-fips-2.8 | 0 | 2.8.1-r4 |
| Chainguard | flux-helm-controller | 0 | 1.5.3-r1 |
| Chainguard | flux-image-automation-controller | 0 | 1.1.1-r3 |
| Chainguard | flux-image-reflector-controller | 0 | 1.1.1-r1 |
| Chainguard | flux-notification-controller | 0 | 1.8.2-r1 |
| Chainguard | flux-operator | 0 | 0.45.0-r1 |
| Chainguard | flux-operator-fips | 0 | 0.43.0-r1 |
| Chainguard | flux-operator-mcp | 0 | 0.45.0-r1 |
| Chainguard | flux-operator-mcp-fips | 0 | 0.43.0-r1 |
| Chainguard | flux-source-controller | 0 | 1.8.1-r1 |
| Chainguard | flux-source-watcher | 0 | 2.1.1-r1 |
| Chainguard | gitlab-container-registry-fips-18.7 | 0 | 18.7.5-r1 |
| Chainguard | gitlab-container-registry-fips-18.8 | 0 | 18.8.5-r1 |
| Chainguard | gitlab-container-registry-fips-18.9 | 0 | 18.9.1-r1 |
| Chainguard | gitlab-logger-fips-18.7 | 0 | 0 |
| Chainguard | gitlab-logger-fips-18.8 | 0 | 0 |
| Chainguard | gitlab-logger-fips-18.9 | 0 | 0 |
| Chainguard | gitlab-shell-fips-18.7 | 0 | 18.7.5-r1 |
| Chainguard | gitlab-shell-fips-18.8 | 0 | 18.8.5-r1 |
| Chainguard | gitlab-shell-fips-18.9 | 0 | 18.9.1-r1 |
| Chainguard | gotenberg | 0 | 8.27.0-r2 |
| Chainguard | grafana-fips-12.0 | 0 | 12.0.10-r2 |
| Chainguard | grafana-operator | 0 | 5.22.1-r0 |
| Chainguard | grafana-operator-fips | 0 | 5.22.1-r0 |
| Chainguard | grafana-rollout-operator | 0 | 0.35.0-r2 |
| Chainguard | librechat | 0 | 0.8.3-r0 |
| Chainguard | loki-fips-3.5 | 0 | 3.5.12-r0 |
| Chainguard | loki-fips-3.5-logcli | 0 | 3.5.12-r0 |
| Chainguard | loki-fips-3.5-loki-canary | 0 | 3.5.12-r0 |
| Chainguard | loki-fips-3.5-promtail | 0 | 3.5.12-r0 |
| Chainguard | metacontroller | 0 | 4.13.1-r1 |
| Chainguard | nova | 0 | 3.11.13-r1 |
| Chainguard | nova-fips | 0 | 3.11.11-r3 |
| Chainguard | omnictl-multiarch | 0 | 1.6.0-r0 |
| Chainguard | pgwatch | 0 | 5.1.0-r1 |
| Chainguard | pluto | 0 | 5.23.5-r1 |
| Chainguard | podcli | 0 | 6.11.1-r1 |
| Chainguard | podinfo | 0 | 6.11.1-r1 |
| Chainguard | polaris | 0 | 10.1.6-r1 |
| Chainguard | renovate | 0 | 0 |
| Chainguard | stakater-reloader | 0 | 1.4.14-r1 |
| Chainguard | steampipe | 0 | 2.4.0-r2 |
| Chainguard | temporal-fips | 0 | 1.6.1-r1 |
| Chainguard | victorialogs | 0 | 1.48.0-r0 |
| Chainguard | victorialogs-fips | 0 | 1.47.0-r2 |
| Chainguard | victoriametrics | 0 | 1.138.0-r0 |
| Chainguard | victoriametrics-fips | 0 | 1.137.0-r1 |
| Chainguard | victoriametrics-vmagent | 0 | 1.138.0-r0 |
| Chainguard | victoriametrics-vmagent-cluster | 0 | 1.138.0-r0 |
| Chainguard | victoriametrics-vmagent-cluster-fips | 0 | 1.137.0-r1 |
| Chainguard | victoriametrics-vmagent-fips | 0 | 1.137.0-r1 |
| Chainguard | victoriametrics-vmalert | 0 | 1.138.0-r0 |
| Chainguard | victoriametrics-vmalert-cluster | 0 | 1.138.0-r0 |
| Chainguard | victoriametrics-vmalert-cluster-fips | 0 | 1.137.0-r1 |
| Chainguard | victoriametrics-vmalert-fips | 0 | 1.137.0-r1 |
| Chainguard | victoriametrics-vmauth | 0 | 1.138.0-r0 |
| Chainguard | victoriametrics-vmauth-fips | 0 | 1.137.0-r1 |
| Chainguard | victoriametrics-vminsert-cluster | 0 | 1.138.0-r0 |
| Chainguard | victoriametrics-vminsert-cluster-fips | 0 | 1.137.0-r1 |
| Chainguard | victoriametrics-vmselect-cluster | 0 | 1.138.0-r0 |
| Chainguard | victoriametrics-vmselect-cluster-fips | 0 | 1.137.0-r1 |
| Chainguard | victoriametrics-vmstorage-cluster | 0 | 1.138.0-r0 |
| Chainguard | victoriametrics-vmstorage-cluster-fips | 0 | 1.137.0-r1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP7 | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP7 | go1.26-openssl | 0 | 1.26.1-150600.13.3.1 |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise Server 15 SP6-LTSS | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise Server 15 SP6-LTSS | go1.26-openssl | 0 | 1.26.1-150600.13.3.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP6 | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP6 | go1.26-openssl | 0 | 1.26.1-150600.13.3.1 |
| Wolfi | flux-helm-controller | 0 | 1.5.3-r1 |
| Wolfi | flux-image-automation-controller | 0 | 1.1.1-r3 |
| Wolfi | flux-image-reflector-controller | 0 | 1.1.1-r1 |
| Wolfi | flux-notification-controller | 0 | 1.8.2-r1 |
| Wolfi | flux-operator | 0 | 0.45.0-r1 |
| Wolfi | flux-operator-mcp | 0 | 0.45.0-r1 |
| Wolfi | flux-source-controller | 0 | 1.8.1-r1 |
| Wolfi | grafana-operator | 0 | 5.22.1-r0 |
| Wolfi | grafana-rollout-operator | 0 | 0.35.0-r2 |
| Wolfi | metacontroller | 0 | 4.13.1-r1 |
| Wolfi | nova | 0 | 3.11.13-r1 |
| Wolfi | pluto | 0 | 5.23.5-r1 |
| Wolfi | podcli | 0 | 6.11.1-r1 |
| Wolfi | podinfo | 0 | 6.11.1-r1 |
| Wolfi | polaris | 0 | 10.1.6-r1 |
| Wolfi | renovate | 0 | 0 |
| Wolfi | stakater-reloader | 0 | 1.4.14-r1 |
| Wolfi | steampipe | 0 | 2.4.0-r2 |
| Wolfi | victoriametrics | 0 | 1.138.0-r0 |
| Wolfi | victoriametrics-vmagent | 0 | 1.138.0-r0 |
| Wolfi | victoriametrics-vmagent-cluster | 0 | 1.138.0-r0 |
| Wolfi | victoriametrics-vmalert | 0 | 1.138.0-r0 |
| Wolfi | victoriametrics-vmalert-cluster | 0 | 1.138.0-r0 |
| Wolfi | victoriametrics-vmauth | 0 | 1.138.0-r0 |
| Wolfi | victoriametrics-vminsert-cluster | 0 | 1.138.0-r0 |
| Wolfi | victoriametrics-vmselect-cluster | 0 | 1.138.0-r0 |
| Wolfi | victoriametrics-vmstorage-cluster | 0 | 1.138.0-r0 |
| openSUSE:Leap 15.6 | go1.26 | 0 | 1.26.1-150000.1.6.1 |
| openSUSE:Leap 15.6 | go1.26-openssl | 0 | 1.26.1-150600.13.3.1 |
| openSUSE:Leap 15.6 | govulncheck-vulndb | 0 | 0.0.20260317T205859-150000.1.152.1 |
| openSUSE:Leap 16.0 | go1.26 | 0 | 1.26.1-160000.1.1 |
| openSUSE:Leap 16.0 | go1.26-openssl | 0 | 1.26.1-160000.1.1 |
| openSUSE:Tumbleweed | go1.26 | 0 | 1.26.1-1.1 |
| openSUSE:Tumbleweed | steampipe | 0 | 2.4.1-1.1 |
Related vulnerabilities
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- CVE-2026-27142 Actions which insert URLs into the content attribute of HTML meta tags are not escaped. Also affects amazon-k8s-cni-fips
- CVE-2026-27139 On Unix platforms, when listing the contents of a directory using File.ReadDir or… Also affects amazon-k8s-cni-fips
- CVE-2026-25679 url.Parse insufficiently validated the host/authority component and accepted some invalid… Also affects amazon-k8s-cni-fips
- CVE-2026-27137 When verifying a certificate chain which contains a certificate containing multiple email… Also affects amazon-k8s-cni-fips
- CVE-2025-68121 During session resumption in crypto/tls, if the underlying Config has its ClientCAs or… Also affects amazon-k8s-cni-fips
- CVE-2025-61732 A discrepancy between how Go and C/C++ comments were parsed allowed for code smuggling… Also affects amazon-k8s-cni-fips
- CVE-2025-68119 Downloading and building modules with malicious version strings can cause local code… Also affects amazon-k8s-cni-fips