RLSA-2026:90915: Moderate: gcc-toolset-15-gcc security update

Q: Can exploitation be attempted remotely, and does it require authentication or user interaction?

The CVSS vector indicates network-based exploitation is possible without privileges or user interaction. Exploitation has high attack complexity.

Q: What is the potential impact if the flaw is exploited?

The issue is described as a use-after-free that can cause denial of service. The supplied CVSS metrics also indicate low potential confidentiality and integrity impact, with high availability impact.

Q: Which systems should be assessed first?

Assess Rocky Linux systems with the gcc-toolset-15-gcc package installed. The advisory data does not identify specific affected or fixed package build versions, so installed package version details should be checked against the vendor update information.

Published Oct 29, 2026

Updated

The gcc-toolset-15-gcc package contains the GNU Compiler Collection version 15.

Security Fix(es):

gcc-toolset-15-gcc: gcc: gcc-toolset-16: gcc: Denial of Service via use-after-free in binary heap eraseif (CVE-2026-102010)

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

1 affected componentFixes available

rocky-linux/gcc-toolset-15-gcc<0:15.2.1-7.2.el8_10

0:15.2.1-7.2.el8_10

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade rocky-linux/gcc-toolset-15-gcc to a version that resolves this vulnerability.
Fixed in 0:15.2.1-7.2.el8_10

Event History

Oct 29, 2026

Advisory Published

via OSV·12:01 PM

Data Sourced

via OSV·12:01 PM

DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

CVE-2026-102010

Frequently Asked Questions

Can exploitation be attempted remotely, and does it require authentication or user interaction?

The CVSS vector indicates network-based exploitation is possible without privileges or user interaction. Exploitation has high attack complexity.

What is the potential impact if the flaw is exploited?

The issue is described as a use-after-free that can cause denial of service. The supplied CVSS metrics also indicate low potential confidentiality and integrity impact, with high availability impact.

Which systems should be assessed first?

Assess Rocky Linux systems with the gcc-toolset-15-gcc package installed. The advisory data does not identify specific affected or fixed package build versions, so installed package version details should be checked against the vendor update information.

RLSA-2026:90915: Moderate: gcc-toolset-15-gcc security update

Affected Software

Remediation

Event History

Child vulnerabilities

Frequently Asked Questions

Can exploitation be attempted remotely, and does it require authentication or user interaction?

What is the potential impact if the flaw is exploited?

Which systems should be assessed first?

Company

Resources

Contact

Frequently Asked Questions

Can exploitation be attempted remotely, and does it require authentication or user interaction?

What is the potential impact if the flaw is exploited?

Which systems should be assessed first?