RHSA-2026:60304
Vulnerability from csaf_redhat - Published: 2026-08-26 14:08 - Updated: 2026-09-01 15:40Summary
Red Hat Security Advisory: golang security, bug fix, and enhancement update
Severity
Important
Notes
Topic: An update for golang 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 golang packages provide the Go programming language compiler.
Security Fix(es):
* encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818)
* net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860)
* net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853)
* html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858)
* crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862)
* encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859)
Bug Fix(es) and Enhancement(s):
* Go 1.26 -- maxThreads limit hit in CGO threads blocked on RAND_bytes in FIPS mode (JIRA:RHEL-215845)
* Update Go to version 1.26.7+1 [rhel-9.8.z] (JIRA:RHEL-246425)
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.
A flaw was found in the `encoding/asn1` package in Go. An attacker could provide a specially crafted, deeply-nested Abstract Syntax Notation One (ASN.1) structure, leading to excessive recursion during the `Unmarshal` operation. This could result in stack exhaustion and a Denial of Service (DoS) condition.
7.5 (High)
Affected products
Fixed
21 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.src | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-docs-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-misc-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-src-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-tests-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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Threats
Impact
Important
A flaw was found in the `net/http` component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the `ReadHeaderTimeout` is not correctly applied during this process. This oversight could allow a remote attacker to maintain open connections indefinitely, potentially leading to a Denial of Service (DoS) by exhausting server resources.
7.5 (High)
Affected products
Fixed
21 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.src | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-docs-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-misc-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-src-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-tests-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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Threats
Impact
Important
A flaw was found in the `html/template` component of Go (golang). Pathological inputs could prematurely close an unescaped forward slash ('/'), allowing an attacker to inject arbitrary content. This could lead to Cross-Site Scripting (XSS), where malicious scripts are executed in a user's browser, potentially compromising user data or actions.
8.1 (High)
Affected products
Fixed
21 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.src | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-docs-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-misc-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-src-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-tests-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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Threats
Impact
Important
A flaw was found in the `encoding/xml` package of Go. The `DecodeElement` function failed to correctly track recursion depth, which could lead to stack exhaustion. A remote attacker could exploit this vulnerability by providing a specially crafted XML input, resulting in a Denial of Service (DoS) for the affected application.
7.5 (High)
Affected products
Fixed
21 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.src | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-docs-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-misc-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-src-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-tests-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
Workaround
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Threats
Impact
Important
A flaw was found in `net/url`, a component of `golang`. This vulnerability arises when resolving relative paths that contain numerous parent directory ('..') segments. A remote attacker could exploit this by providing a specially crafted path, leading to quadratic time complexity and excessive memory allocation. This can result in a Denial of Service (DoS) due to resource exhaustion.
7.5 (High)
Affected products
Fixed
21 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.src | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-bin-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-docs-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-misc-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.s390x | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-src-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-tests-0:1.26.7-1.el9_8.noarch | — |
Vendor Fix
fix
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Threats
Impact
Important
A flaw was found in the `crypto/tls` package, part of `golang`. A malicious client can exploit this vulnerability by continuously sending KeyUpdate messages to a server. This forces the server to perform indefinite key derivation operations, leading to resource exhaustion and a Denial of Service (DoS) condition.
7.5 (High)
Affected products
Fixed
21 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:go-toolset-0:1.26.7-1.el9_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-0:1.26.7-1.el9_8.src | — |
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-docs-0:1.26.7-1.el9_8.noarch | — |
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-misc-0:1.26.7-1.el9_8.noarch | — |
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| Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:golang-race-0:1.26.7-1.el9_8.s390x | — |
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Threats
Impact
Important
References
53 references
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"text": "The golang packages provide the Go programming language compiler.\n\nSecurity Fix(es):\n\n* encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818)\n\n* net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860)\n\n* net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853)\n\n* html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858)\n\n* crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862)\n\n* encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859)\n\nBug Fix(es) and Enhancement(s):\n\n* Go 1.26 -- maxThreads limit hit in CGO threads blocked on RAND_bytes in FIPS mode (JIRA:RHEL-215845)\n\n* Update Go to version 1.26.7+1 [rhel-9.8.z] (JIRA:RHEL-246425)\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.",
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-56862"
},
{
"category": "external",
"summary": "RHBZ#2515839",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515839"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-56862",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56862"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56862",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56862"
},
{
"category": "external",
"summary": "https://go.dev/cl/804261",
"url": "https://go.dev/cl/804261"
},
{
"category": "external",
"summary": "https://go.dev/issue/80528",
"url": "https://go.dev/issue/80528"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/94pEornpRlI",
"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-6090",
"url": "https://pkg.go.dev/vuln/GO-2026-6090"
}
],
"release_date": "2026-08-13T21:58:53.216000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-08-26T14:08:47+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"scores": [
{
"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": "crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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