Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-x2q3-8cjh-766f

Excelize: extractPart allocates attacker-controlled, unbounded and negative-sized buffers from CFB directory entries: remote panic / OOM DoS

CVSS 7.5 HighEPSS 0.0024 · 15th percentile

Published by the GitHub Advisory Database at 8 Oct 2026, 16:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/xuri/excelize/v2Go>=2.3.1, <2.11.1-0.20260912113515-5f636f9dcde52.11.1-0.20260912113515-5f636f9dcde5
Identifiers
GHSA-x2q3-8cjh-766f · CVE-2026-107215 · GO-2026-6689
Weakness (CWE)
CWE-789
Tags
Published
8 Oct 2026
Updated
19 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Excelize (github.com/xuri/excelize/v2) versions from 2.3.1 before 2.11.1-0.20260912113515-5f636f9dcde5 are affected. An unauthenticated attacker who can upload a crafted OLE file to a service that opens it with excelize can crash the process or force a 4 GiB memory allocation. Upgrade to 2.11.1-0.20260912113515-5f636f9dcde5 or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0024, the 15th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:11 UTC First seen by agentprime
  2. 31 Oct 2026, 14:11 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.