RHSA-2026:29455

Vulnerability from csaf_redhat - Published: 2026-06-25 00:07 - Updated: 2026-06-27 19:40
Summary
Red Hat Security Advisory: buildah security update
Severity
Important
Notes
Topic: An update for buildah is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a Dockerfile; Build both Docker and OCI images. Security Fix(es): * net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) * crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281) * crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) * crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) * golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted public key with excessive parameters (CVE-2026-39829) * golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via resource leak from unsolicited SSH responses (CVE-2026-39830) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-25679

The Go standard library function net/url.Parse insufficiently validated the host/authority component and accepted some invalid URLs by effectively treating garbage before an IP-literal as ignorable. The function should have rejected this as invalid.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-1286 - Improper Validation of Syntactic Correctness of Input
Affected products
Product Identifier Version Remediation
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.src —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-32280

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.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Product Identifier Version Remediation
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.src —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Threats
Impact Important
CVE-2026-32281

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.

5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-1050 - Excessive Platform Resource Consumption within a Loop
Affected products
Product Identifier Version Remediation
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.src —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
CVE-2026-32283

A flaw was found in the `crypto/tls` package within the Go (golang) standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock, leading to uncontrolled consumption of resources and ultimately a denial of service (DoS).

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-764 - Multiple Locks of a Critical Resource
Affected products
Product Identifier Version Remediation
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.src —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Threats
Impact Important
CVE-2026-39829

A flaw was found in golang.org/x/crypto/ssh. The RSA and DSA public key parsers in the affected component did not enforce size limits on key parameters. This vulnerability allows an unauthenticated client to provide a crafted public key with an excessively large modulus or DSA parameter during public key authentication. Successful exploitation could lead to a denial of service (DoS) due to prolonged CPU consumption during signature verification.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-1284 - Improper Validation of Specified Quantity in Input
Affected products
Product Identifier Version Remediation
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.src —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
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Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-39830

A flaw was found in golang.org/x/crypto/ssh. A remote malicious SSH peer can exploit this by sending unsolicited global request responses, which fills an internal buffer and blocks the connection's read loop. This prevents the associated resources from being released, leading to a resource leak per connection. The consequence is a Denial of Service (DoS) for the affected system.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-772 - Missing Release of Resource after Effective Lifetime
Affected products
Product Identifier Version Remediation
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.src —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-debugsource-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.ppc64le —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.s390x —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:buildah-tests-debuginfo-2:1.43.1-2.el9_8.x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:29455 self
https://access.redhat.com/security/updates/classi… external
https://bugzilla.redhat.com/show_bug.cgi?id=2445356 external
https://bugzilla.redhat.com/show_bug.cgi?id=2456333 external
https://bugzilla.redhat.com/show_bug.cgi?id=2456338 external
https://bugzilla.redhat.com/show_bug.cgi?id=2456339 external
https://bugzilla.redhat.com/show_bug.cgi?id=2480681 external
https://bugzilla.redhat.com/show_bug.cgi?id=2480684 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-25679 self
https://bugzilla.redhat.com/show_bug.cgi?id=2445356 external
https://www.cve.org/CVERecord?id=CVE-2026-25679 external
https://nvd.nist.gov/vuln/detail/CVE-2026-25679 external
https://go.dev/cl/752180 external
https://go.dev/issue/77578 external
https://groups.google.com/g/golang-announce/c/Edh… external
https://pkg.go.dev/vuln/GO-2026-4601 external
https://access.redhat.com/security/cve/CVE-2026-32280 self
https://bugzilla.redhat.com/show_bug.cgi?id=2456339 external
https://www.cve.org/CVERecord?id=CVE-2026-32280 external
https://nvd.nist.gov/vuln/detail/CVE-2026-32280 external
https://go.dev/cl/758320 external
https://go.dev/issue/78282 external
https://groups.google.com/g/golang-announce/c/0uY… external
https://pkg.go.dev/vuln/GO-2026-4947 external
https://access.redhat.com/security/cve/CVE-2026-32281 self
https://bugzilla.redhat.com/show_bug.cgi?id=2456333 external
https://www.cve.org/CVERecord?id=CVE-2026-32281 external
https://nvd.nist.gov/vuln/detail/CVE-2026-32281 external
https://go.dev/cl/758061 external
https://go.dev/issue/78281 external
https://pkg.go.dev/vuln/GO-2026-4946 external
https://access.redhat.com/security/cve/CVE-2026-32283 self
https://bugzilla.redhat.com/show_bug.cgi?id=2456338 external
https://www.cve.org/CVERecord?id=CVE-2026-32283 external
https://nvd.nist.gov/vuln/detail/CVE-2026-32283 external
https://go.dev/cl/763767 external
https://go.dev/issue/78334 external
https://pkg.go.dev/vuln/GO-2026-4870 external
https://access.redhat.com/security/cve/CVE-2026-39829 self
https://bugzilla.redhat.com/show_bug.cgi?id=2480681 external
https://www.cve.org/CVERecord?id=CVE-2026-39829 external
https://nvd.nist.gov/vuln/detail/CVE-2026-39829 external
https://go.dev/cl/781641 external
https://go.dev/cl/781661 external
https://go.dev/issue/79565 external
https://groups.google.com/g/golang-announce/c/a08… external
https://pkg.go.dev/vuln/GO-2026-5018 external
https://access.redhat.com/security/cve/CVE-2026-39830 self
https://bugzilla.redhat.com/show_bug.cgi?id=2480684 external
https://www.cve.org/CVERecord?id=CVE-2026-39830 external
https://nvd.nist.gov/vuln/detail/CVE-2026-39830 external
https://go.dev/cl/781640 external
https://go.dev/cl/781664 external
https://go.dev/issue/79564 external
https://pkg.go.dev/vuln/GO-2026-5017 external
To clipboard 

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      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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      {
        "category": "summary",
        "text": "An update for buildah is now available for Red Hat Enterprise Linux 9.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a Dockerfile; Build both Docker and OCI images. \n\nSecurity Fix(es):\n\n* net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)\n\n* crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281)\n\n* crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283)\n\n* crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)\n\n* golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted public key with excessive parameters (CVE-2026-39829)\n\n* golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via resource leak from unsolicited SSH responses (CVE-2026-39830)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
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          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via resource leak from unsolicited SSH responses"
    }
  ]
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.