Medium 6.1Published Mar 23, 2026

CVE-2026-4647Binutils: out-of-bounds read in xcoff relocation processing in gnu binutils bfd library

Updated under an hour ago (Oct 26, 2026, 4:30 PM ET)

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It affects Red Hat Hardened Images and 4 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Red Hat Hardened Images

Exploited in the last 30 days

A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.

CVSS: 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Modified
Record last updated: Sep 1, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat Hardened Images redhat:hummingbird	from 2.45.1-5.1.hum1 not affected	CNA record
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	10	CNA record
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift	4	CNA record
gnu binutils gnu:binutils	all versions	NVD
redhat openshift_container_platform redhat:openshift_container_platform	4.0	NVD
redhat enterprise_linux redhat:enterprise_linux	6.0; 7.0; 8.0; 9.0; 10.0	NVD

References

References

https://access.redhat.com/errata/RHSA-2026:33527	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:39022	vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2026-4647	vdb-entry, x-refsource-redhat, mitigation, vendor-advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2450302	issue-tracking, x-refsource-redhat, vendor-advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=33919	broken-link

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.