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CVE-2026-20889

Quick assessment

Affected
LibRaw LibRaw
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.

Libraw是Libraw公司的一个用来处理RAW(CRW/CR2,NEF,RAF,DNG,andothers)格式图片的C++库，支持各种操作系统。 Libraw存在安全漏洞，该漏洞源于x3f_thumb_loader功能存在堆缓冲区溢出，可能导致堆缓冲区溢出。

CVSS 9.8 · Critical EPSS 0.80% · P55

Affected Version Matrix 1

VendorProduct Version RangeStatus
LibRaw LibRaw Commit d20315b affected
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I. Basic Information for CVE-2026-20889

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A heap-based buffer overflow vulnerability exists in the x3f_thumb_loader functionality of LibRaw Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
Libraw 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Libraw是Libraw公司的一个用来处理RAW(CRW/CR2,NEF,RAF,DNG,andothers)格式图片的C++库，支持各种操作系统。 Libraw存在安全漏洞，该漏洞源于x3f_thumb_loader功能存在堆缓冲区溢出，可能导致堆缓冲区溢出。
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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
LibRaw LibRaw Commit d20315b -

II. Public POCs for CVE-2026-20889

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III. Intelligence Information for CVE-2026-20889

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Vendor Advisories for CVE-2026-20889 (1)

Same Patch Batch · LibRaw · 2026-04-07 · 6 CVEs total

CVE-2026-21413 9.8 CRITICAL Libraw 安全漏洞
CVE-2026-20911 9.8 CRITICAL Libraw 安全漏洞
CVE-2026-24660 8.1 HIGH Libraw 安全漏洞
CVE-2026-24450 8.1 HIGH Libraw 安全漏洞
CVE-2026-20884 8.1 HIGH Libraw 安全漏洞

IV. Related Vulnerabilities

Same product: LibRaw
Same vendor: LibRaw
Same weakness: CWE-190

V. Comments for CVE-2026-20889

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