---
id: "CVE-2026-116732"
kind: "vulnerability"
aliases: ["CVE-2026-116732"]
title: "libdwarf: crafted object file reads past heap buffer in debug_addr"
severity: "medium"
cvss: 4.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["binary-analysis", "debuggers", "libdwarf", "package"]
not_affected_if: ["trusted-inputs-only"]
published_at: "2026-10-26T22:16:57+00:00"
first_seen_at: "2026-10-26T22:25:33+00:00"
updated_at: "2026-10-26T22:28:05+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116732", "first_seen_at": "2026-10-26T22:25:33+00:00"}]
---

# libdwarf: crafted object file reads past heap buffer in debug_addr

libdwarf through 2.3.3 has a heap out-of-bounds read in dwarf_debug_addr_table() because it skips the table offset when validating the .debug_addr unit length. A crafted object file can leak adjacent heap bytes or crash any tool that parses it.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- unknown

## Fix

- unknown

## Timeline

- 2026-10-26T22:25:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116732

## From the sources

libdwarf through 2.3.3 contains a heap out-of-bounds read vulnerability in dwarf_debug_addr_table() that omits the table starting offset when validating .debug_addr unit length. Attackers can supply a crafted object file with a non-zero offset table, causing dwarf_debug_addr_by_index() to read past the heap buffer, disclosing adjacent heap bytes or crashing consumers.

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