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CVE-2026-70651— libvips: Possible integer overflow when reading multi-page TIFF images via ImageMagick

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 是一个内存占用低且处理速度快的图像处理库。在版本 8.18.3 之前，如果 libvips 在构建时未启用 libtiff 支持但启用了 ImageMagick 支持，通过 VipsForeignLoadMagick 加载经过精心构造的多页 TIFF 文件时，可能会导致组合帧高度发生整数溢出。libvips/foreign/magick6load.c 和 libvips/foreign/magick7load.c 中的易受攻击代码在未进行边界检查的情况下，将每页的高度（Ysize）与帧数（n_fra

CVSS 6.9 · Medium EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
libvips libvips < 8.18.3 affected
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I. Basic Information for CVE-2026-70651

Vulnerability Information
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Vulnerability Title
libvips: Possible integer overflow when reading multi-page TIFF images via ImageMagick
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, libvips built without libtiff support but with ImageMagick support can overflow the combined frame height while loading a crafted multi-page TIFF through VipsForeignLoadMagick. The vulnerable calculations in libvips/foreign/magick6load.c and libvips/foreign/magick7load.c multiply the per-page Ysize by n_frames without a checked bound, which can cause a heap buffer over-read and process crash. Most package-manager builds include libtiff and do not use this affected fallback path. 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:N/VI:L/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出导致缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
libvips libvips < 8.18.3 -

II. Public POCs for CVE-2026-70651

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III. Intelligence Information for CVE-2026-70651

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Patches & Fixes for CVE-2026-70651 (2)

Vendor Advisories for CVE-2026-70651 (1)

Vendor Pages for CVE-2026-70651 (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-2026-70654 5.8 MEDIUM libvips: A well-crafted PPM image processed via a custom source could lead to possible hea
CVE-2026-70653 4.8 MEDIUM libvips: Possible heap-based buffer read overflow when decoding a well-crafted RLE Radianc
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-680

V. Comments for CVE-2026-70651

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