CVE-2026-70651

Process crash via unchecked multi-frame height multiplication

Published Aug 20, 2026 · Updated Aug 25, 2026

Integer overflow in libvips before 8.18.3 allows local users to crash an image-processing process via a crafted multi-page TIFF. VipsForeignLoadMagick in magick6load.c and magick7load.c multiplies each frame's Ysize by n_frames without checking the result before assigning the combined height. The path is reachable only in builds without libtiff and with ImageMagick support, and a successful trigger interrupts only the process handling the image.

CVSS severity6.9
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in libvips before 8.18.3 allows local users to crash an image-processing process via a crafted multi-page TIFF. VipsForeignLoadMagick in magick6load.c and magick7load.c multiplies each frame's Ysize by n_frames without checking the result before assigning the combined height. The path is reachable only in builds without libtiff and with ImageMagick support, and a successful trigger interrupts only the process handling the image.

The record

CVE
CVE-2026-70651
Published
Aug 20, 2026
Updated
Aug 25, 2026
Vendor
libvips
Product
libvips
Classifications
CWE-680, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 8.18.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

libvips · libvipsversion=< 8.18.3

Published CVSS scores

6.9GitHubCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-680Integer Overflow to Buffer Overflow
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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