CVE-2026-110659
MEDIUMCVSS 5.5Description
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.
Timeline
Published:October 14th, 2026 4:17 PM
Last modified:October 20th, 2026 2:17 AM
CVSS Scoring
CVSS v3: 5.5 (MEDIUM)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
- https://github.com/serge1/ELFIO
- https://github.com/serge1/ELFIO/blob/8ae6cec5d60495822ecd57d736f66149da9b1830/elfio/elfio_relocation.hpp#L142
- https://hackmd.io/@haind-pwn/elfio-relocation-get-entry-null-deref
- https://www.vulncheck.com/advisories/elfio-through-3.12-null-pointer-dereference-via-relocation-section-accessor-get-entry
Source: NIST NVD · Data may lag official sources by up to one minute