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CVE-2026-46599— Excessive resource consumption in PackBits decompression in golang.org/x/image/tiff

Quick assessment

Affected
golang.org/x/image golang.org/x/image/tiff
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.

Google Go是美国谷歌（Google）公司的一种静态强类型、编译型、并发型，并具有垃圾回收功能的编程语言。 Google Go存在安全漏洞，该漏洞源于未对PackBits压缩数据大小设置限制，可能导致恶意图像使解码器解码大量压缩数据。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.35% · P28

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
golang.org/x/image golang.org/x/image/tiff < 0.41.0 affected
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I. Basic Information for CVE-2026-46599

Vulnerability Information
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Vulnerability Title
Excessive resource consumption in PackBits decompression in golang.org/x/image/tiff
Source: CVE Program / CVE List V5
Vulnerability Description
The TIFF decoder does not place a limit on the size of PackBits-compressed data. A maliciously-crafted image can exploit this to cause a small image (both in terms of pixel width/height and encoded size) to make the decoder decode large amounts of compressed data.
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
Google Go 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Go是美国谷歌（Google）公司的一种静态强类型、编译型、并发型，并具有垃圾回收功能的编程语言。 Google Go存在安全漏洞，该漏洞源于未对PackBits压缩数据大小设置限制，可能导致恶意图像使解码器解码大量压缩数据。
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
golang.org/x/image golang.org/x/image/tiff 0 ~ 0.41.0 -

II. Public POCs for CVE-2026-46599

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III. Intelligence Information for CVE-2026-46599

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Patches & Fixes for CVE-2026-46599 (2)

Vendor Advisories for CVE-2026-46599 (1)

Mailing List Discussions for CVE-2026-46599 (1)

IV. Related Vulnerabilities

Same product: golang.org/x/image/tiff
Same vendor: golang.org/x/image

V. Comments for CVE-2026-46599

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