RLSA-2026:97877: Important: delve security, bug fix, and enhancement update
Delve is a debugger for the Go programming language. The goal of the project is to provide a simple, full featured debugging tool for Go. Delve should be easy to invoke and easy to use. Chances are if you're using a debugger, things aren't going your way. With that in mind, Delve should stay out of your way as much as possible.
Security Fix(es):
crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862)
crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)
Bug Fix(es) and Enhancement(s):
Update Delve to 1.27 [rhel-9] (JIRA:Rocky Linux-219306)
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
rocky-linux/delveto a version that resolves this vulnerability.Fixed in 0:1.27.2-2.el9_9 - Upgrade
Upgrade
rocky-linux/delve-debuginfoto a version that resolves this vulnerability.Fixed in 0:1.27.2-2.el9_9 - Upgrade
Upgrade
rocky-linux/delve-debugsourceto a version that resolves this vulnerability.Fixed in 0:1.27.2-2.el9_9 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 1.27
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
Which Rocky Linux packages are covered by this update?
The update covers rocky-linux/delve, rocky-linux/delve-debuginfo, and rocky-linux/delve-debugsource.
What version is included for RHEL 9?
The advisory states that Delve is updated to version 1.27 for rhel-9.
Does the advisory identify any configuration requirements or workarounds?
No configuration prerequisites, affected default settings, or temporary mitigations are provided in the advisory. It identifies fixes for two crypto/tls denial-of-service issues and one crypto/x509 man-in-the-middle issue.