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

Description

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.

Timeline

Scores

EPSS (exploitation in 30 days)

0.18% · top 93% of all CVEs (14 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.

Affected products

• Red Hat · Red Hat Hardened Images

  • unaffected 2.45.1-5.1.hum1 – < *

• Red Hat · Red Hat Hardened Images

  • unaffected 2.46.1-1.hum1 – < *

• Red Hat · Red Hat Enterprise Linux 10

  All versions: unaffected

• Red Hat · Red Hat Enterprise Linux 10

  All versions: unaffected

• Red Hat · Red Hat Enterprise Linux 10

  All versions: unaffected

• Red Hat · Red Hat Enterprise Linux 10

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 6

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 7

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 7

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 8

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 8

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 8

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 8

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 8

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 8

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 8

  All versions: affected

• Red Hat · Red Hat Enterprise Linux 9

  All versions: unaffected

• Red Hat · Red Hat Enterprise Linux 9

  All versions: unaffected

• Red Hat · Red Hat Enterprise Linux 9

  All versions: unaffected

• Red Hat · Red Hat Enterprise Linux 9

  All versions: unaffected

• Red Hat · Red Hat Enterprise Linux 9

  All versions: affected

• Red Hat · Red Hat OpenShift Container Platform 4

  All versions: affected

• Red Hat · Red Hat OpenShift Container Platform 4

  All versions: affected

What to do

Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2026-14435 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-4647](https://cveledger.app/badge/CVE-2026-4647.svg)](https://cveledger.app/cve/CVE-2026-4647)

Record last updated 5 Nov 2026, 21:10 UTC.