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CVE-2026-35591— Possible heap-based buffer overflow when decoding TIFF image containing well-crafted tile

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团队开源的一个具有低内存需求的快速图像处理库。 libvips 8.18.1及之前版本存在缓冲区错误漏洞，该漏洞源于tiffload操作错误确定TIFF图像中JPEG或JPEG2000编码瓦片的通道数，导致缓冲区溢出。

AI Predicted 6.5 Difficulty: Easy EPSS 0.19% · P9 Updated Jul 21, 2026

Possible ATT&CK Techniques 2 AI

T1203 · Exploitation for Client Execution T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

Vendor	Product	Version Range	Status
libvips	libvips	`<= 8.18.1`	affected

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I. Basic Information for CVE-2026-35591

Vulnerability Information

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Vulnerability Title

Possible heap-based buffer overflow when decoding TIFF image containing well-crafted tile

Source: CVE Program / CVE List V5

Vulnerability Description

libvips is a fast image processing library with low memory needs. The `tiffload` operation in libvips versions before and including 8.18.1 could incorrectly determine the number of channels in a JPEG or JPEG2000-encoded tile within a TIFF image, leading to a possible buffer overflow. This has been patched in version 8.18.2.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/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

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	<= 8.18.1	-

II. Public POCs for CVE-2026-35591

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-35591

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Patches & Fixes for CVE-2026-35591 (2)

🔗 Tiffload validate components by jcupitt · Pull Request #4973 · libvips/libvips · GitHub x_refsource_MISC
🔗 Tiffload validate components (#4973) · libvips/libvips@df044e4 · GitHub Read full article x_refsource_MISC

Vendor Advisories for CVE-2026-35591 (1)

🔗 Possible heap-based buffer overflow when decoding TIFF image containing well-crafted tile · Advisory · libvips/libvips · GitHub Read full article x_refsource_CONFIRM

https://www.cve.org/CVERecord?id=CVE-2026-35591

Same Patch Batch · libvips · 2026-07-20 · 4 CVEs total

CVE-2026-35590		Possible out-of-bounds read leading to crash when decoding well-crafted EXIF metadata
CVE-2026-33327		Possible integer overflow leading to potential heap-based buffer overflow
CVE-2026-33328		Possible integer overflow on 32-bit systems when reading GIF images

IV. Related Vulnerabilities

Same product: libvips

Same vendor: libvips

Same weakness: CWE-122