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CVE-2026-26824

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libxls是libxls开源的一个用于读取旧二进制 OLE 格式 Excel 文件的 C 库。 libxls 1.6.3及之前版本存在安全漏洞，该漏洞源于OLE容器解析器中未初始化内存的使用，可能导致处理特制XLS文件时应用崩溃或潜在信息泄露。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.23% · P14

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-26824

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
libxls through version 1.6.3 contains a use of uninitialized memory vulnerability in the OLE container parser. Memory allocated for the Master Sector Allocation Table (MSAT) in read_MSAT() is not fully initialized before being consumed by ole2_validate_sector_chain(), which may result in application crashes or potential information disclosure when processing a crafted XLS file
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
libxls 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libxls是libxls开源的一个用于读取旧二进制 OLE 格式 Excel 文件的 C 库。 libxls 1.6.3及之前版本存在安全漏洞，该漏洞源于OLE容器解析器中未初始化内存的使用，可能导致处理特制XLS文件时应用崩溃或潜在信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2026-26824

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III. Intelligence Information for CVE-2026-26824

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News Coverage for CVE-2026-26824 (1)

Same Patch Batch · n/a · 2026-06-03 · 32 CVEs total

CVE-2026-10766 3.6 LOW mlrun DataFrame Hash helpers.py mlrun.utils.helpers.calculate_dataframe_hash weak hash
CVE-2026-10705 3.1 LOW dask HLL hyperloglog.py nunique_approx resource consumption
CVE-2025-70100 lwext4 安全漏洞
CVE-2025-70101 lwext4 安全漏洞
CVE-2025-60477 GPAC 安全漏洞
CVE-2026-37700 MaxSite CMS 安全漏洞
CVE-2026-37462 GoBGP 安全漏洞
CVE-2026-37460 FRRouting 安全漏洞
CVE-2026-39107 Moonshot AI Kimi AI 安全漏洞
CVE-2026-36606 Mercusys AC12G 安全漏洞
CVE-2026-36605 Mercusys AC12G 安全漏洞
CVE-2026-36604 Mercusys AC12G 安全漏洞
CVE-2026-36616 Mercusys AC12G 安全漏洞
CVE-2026-36615 Mercusys AC12G 安全漏洞
CVE-2026-36608 Mercusys AC12G 安全漏洞
CVE-2026-36612 Mercusys AC12G 安全漏洞
CVE-2026-36610 Mercusys AC12G 安全漏洞
CVE-2026-36618 Mercusys AC12G 安全漏洞
CVE-2026-36609 Mercusys AC12G 安全漏洞
CVE-2026-36603 Mercusys AC12G 安全漏洞

Showing top 20 of 32 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

V. Comments for CVE-2026-26824

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