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CVE-2026-70653— libvips: Possible heap-based buffer read overflow when decoding a well-crafted RLE Radiance image

Quick assessment

Affected
libvips libvips
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.

libvips是libvips团队开源的一款图像处理库。 libvips 8.18.3之前版本存在缓冲区错误漏洞，该漏洞源于Radiance RLE解码器在处理扫描线开头的重复标记时读取越界（q[-1]），可能导致信息泄露（披露相邻堆数据）。

CVSS 4.8 · Medium EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 1

VendorProduct Version RangeStatus
libvips libvips < 8.18.3 affected
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I. Basic Information for CVE-2026-70653

Vulnerability Information
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Vulnerability Title
libvips: Possible heap-based buffer read overflow when decoding a well-crafted RLE Radiance image
Source: CVE Program / CVE List V5
Vulnerability Description
libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, the old-style Radiance RLE decoder in libvips/foreign/radiance.c can process a repeat marker at the beginning of a scanline in scanline_read_old and read q[-1] before any prior pixel exists. A crafted Radiance image loaded through VipsForeignLoadRad can therefore disclose four bytes of adjacent heap data, most likely other image data. This issue is fixed in version 8.18.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
libvips 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libvips是libvips团队开源的一款图像处理库。 libvips 8.18.3之前版本存在缓冲区错误漏洞，该漏洞源于Radiance RLE解码器在处理扫描线开头的重复标记时读取越界（q[-1]），可能导致信息泄露（披露相邻堆数据）。
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
libvips libvips < 8.18.3 -

II. Public POCs for CVE-2026-70653

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III. Intelligence Information for CVE-2026-70653

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Patches & Fixes for CVE-2026-70653 (2)

Vendor Advisories for CVE-2026-70653 (1)

Vendor Pages for CVE-2026-70653 (1)

Same Patch Batch · libvips · 2026-08-20 · 5 CVEs total

CVE-2026-69242 8.4 HIGH libvips: Integer overflow leading to heap buffer overflow leading to possible attacker-con
CVE-2026-70651 6.9 MEDIUM libvips: Possible integer overflow when reading multi-page TIFF images via ImageMagick
CVE-2026-70654 5.8 MEDIUM libvips: A well-crafted PPM image processed via a custom source could lead to possible hea
CVE-2026-70652 2.0 LOW libvips: Possible heap-based buffer read overflow when resizing and re-encoding a JPEG wit

IV. Related Vulnerabilities

Same product: libvips
Same vendor: libvips
Same weakness: CWE-122

V. Comments for CVE-2026-70653

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