CVE-2026-56851 - Vulnerability Details - OpenCVE

The Nickname profile can panic with an out-of-bounds slice error when transforming crafted input into a short destination buffer.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Golang	Text

No data.

No data.

References

Link	Providers
https://go.dev/cl/793360
https://go.dev/issue/80112
https://nvd.nist.gov/vuln/detail/CVE-2026-56851
https://pkg.go.dev/vuln/GO-2026-6629
https://www.cve.org/CVERecord?id=CVE-2026-56851

History

Tue, 20 Oct 2026 00:30:00 +0000

Type	Values Removed	Values Added
References		https://nvd.nist.gov/vuln/detail/CVE-2026-56851 https://www.cve.org/CVERecord?id=CVE-2026-56851
Metrics	threat_severity `None`	threat_severity `Important`

Fri, 09 Oct 2026 09:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Golang Golang text
Vendors & Products		Golang Golang text

Thu, 08 Oct 2026 18:00:00 +0000

Type	Values Removed	Values Added
Weaknesses	CWE-788

Thu, 08 Oct 2026 14:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-787
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 07 Oct 2026 20:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-788

Wed, 07 Oct 2026 18:00:00 +0000

Type	Values Removed	Values Added
Description		The Nickname profile can panic with an out-of-bounds slice error when transforming crafted input into a short destination buffer.
Title		Panic parsing crafted input in x/text/secure/precis in golang.org/x/text
References		https://go.dev/cl/793360 https://go.dev/issue/80112 https://pkg.go.dev/vuln/GO-2026-6629

MITRE

Status: PUBLISHED

Assigner: Go

Published: 2026-10-07T17:46:35.620Z

Updated: 2026-10-08T13:49:06.348Z

Reserved: 2026-06-23T15:10:49.352Z

Link: CVE-2026-56851

Vulnrichment

Updated: 2026-10-08T13:48:45.937Z

NVD

Status : Deferred

Published: 2026-10-07T18:17:20.903

Modified: 2026-10-08T21:35:53.890

Link: CVE-2026-56851

Redhat

Severity : Important

Publid Date: 2026-10-07T17:46:35Z

Links: CVE-2026-56851 - Bugzilla

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{"bugzilla": {"description": "golang.org/x/text: golang.org/x/text: Denial of Service via out-of-bounds slice error in Nickname profile", "id": "2547607", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2547607"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["The Nickname profile can panic with an out-of-bounds slice error when transforming crafted input into a short destination buffer.", "A flaw was found in golang.org/x/text. An attacker can cause a Denial of Service (DoS) by submitting specially crafted input to an application utilizing the Nickname profile. When transforming this input into an undersized destination buffer, an out-of-bounds slice indexing error occurs, causing the application to panic and crash."], "name": "CVE-2026-56851", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "buildah", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "caddy", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "containernetworking-plugins", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "containers-common", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "cosign", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "dex", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "distribution", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "etcd", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "fulcio", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "gcc13", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "git-lfs", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "git-sync", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "go-fdo-client", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "go-fdo-server", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Will not fix", "package_name": "golang1.25", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "golang1.26", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "golang1.27", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana12.4", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana13.1", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana13.2", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "grype", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "helm3", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "helm4", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "hugo", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "jaeger", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "k6v1", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "k6v2", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "kubernetes1.35", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "kubernetes1.36", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "kube-state-metrics", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "loki3.6", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "loki3.7", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "oauth2-proxy", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "openshell", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "opentelemetry-collector", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "opentelemetry-collector-contrib", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "opentelemetry-collector-k8s", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "opentofu1.10", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Will not fix", "package_name": "opentofu1.11", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "opentofu1.12", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "podman", "product_name": "Red Hat 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{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "syft", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "tempo2.10", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "tempo3.0", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "trivy", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "yq", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-10-07T17:46:35Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-56851\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-56851\nhttps://go.dev/cl/793360\nhttps://go.dev/issue/80112\nhttps://pkg.go.dev/vuln/GO-2026-6629"], "threat_severity": "Important"}