CVE-2026-110659 Details
Description
ELFIO through 3.12 contains a NULL pointer dereference vulnerability in relocation_section_accessor get_entry() that allows attackers to crash applications via an unvalidated sh_link index. Attackers can supply a crafted ELF file whose SHT_REL or SHT_RELA section has a dangling sh_link, causing find_hash_section() to dereference null and deny service.
A NULL pointer dereference vulnerability has been identified in the ELFIO library, specifically in versions through 3.12. The issue arises within the relocation_section_accessor's get_entry() function, where an unvalidated sh_link index allows attackers to crash applications. By supplying a crafted ELF file with a dangling sh_link in the SHT_REL or SHT_RELA section, attackers can cause the find_hash_section() function to dereference a null pointer, leading to a denial-of-service condition.
The vulnerability can be fixed by adding a null check for the sh_link index before it is used to access the symbol table. This check should ensure that the index points to a valid section. Additionally, the symbol_section_accessor should be modified to handle null section pointers gracefully.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 14, 2026CISA-ADP
Assessed Oct 20, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ELFIO | <= 3.12 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 20, 2026 | CVE Modified | CISA-ADP |
| Oct 14, 2026 | New CVE Received | [email protected] |