---
id: "CVE-2026-112055"
kind: "vulnerability"
aliases: ["CVE-2026-112055"]
title: "wvWare wv: crafted .doc file reads past stack buffer"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["abiword", "document-conversion", "linux-desktop", "package", "wvware"]
not_affected_if: ["no-doc-parsing", "no-untrusted-documents"]
published_at: "2026-10-18T13:16:37+00:00"
first_seen_at: "2026-10-23T21:57:15+00:00"
updated_at: "2026-10-25T03:44:59+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112055", "first_seen_at": "2026-10-23T21:57:15+00:00"}]
---

# wvWare wv: crafted .doc file reads past stack buffer

wvWare's wv library, through version 1.2.9, miscalculates a run count in Word binary FKP data, so wvGetPAPX_FKP and wvGetCHPX_FKP read kilobytes beyond a 512-byte stack buffer. An attacker who supplies a crafted .doc file can crash applications that parse it, such as AbiWord.

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

## How to check

- Check whether the application links against wv (wvWare) with `ldd` or the package manager, for example `dpkg -l | grep wv` or `rpm -q wv`
- Check the installed wv version with `wvWare --version` or the package manager, versions up to `1.2.9` are affected
- Check whether the application opens untrusted .doc files through wvWare

## Timeline

- 2026-10-23T21:57:15+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112055

## From the sources

wvWare wv through 1.2.9 contains a stack-based out-of-bounds read vulnerability in wvGetPAPX_FKP and wvGetCHPX_FKP caused by an unvalidated FKP run count. Attackers can supply a crafted .doc file with a large crun value to read kilobytes past the 512-byte stack buffer, crashing applications like AbiWord.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_