CVE-2026-65918Public exploitNetwork attack vector

Service interruption via unclamped GIF copy length

Published Jul 23, 2026 · Updated Jul 23, 2026

Out-of-bounds read in PyTorch Torchvision 0.28.0 and earlier allows attackers to crash GIF-decoding processes via crafted images. The read_from_tensor callback calculates the remaining byte count but passes giflib's larger requested length to memcpy, which reads beyond the input tensor. Exploitation requires an application to decode a malicious or truncated GIF; a crash is demonstrated, while giflib can also consume adjacent heap data.

CVSS severity7.1
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in PyTorch Torchvision 0.28.0 and earlier allows attackers to crash GIF-decoding processes via crafted images. The read_from_tensor callback calculates the remaining byte count but passes giflib's larger requested length to memcpy, which reads beyond the input tensor. Exploitation requires an application to decode a malicious or truncated GIF; a crash is demonstrated, while giflib can also consume adjacent heap data.

The record

CVE
CVE-2026-65918
Published
Jul 23, 2026
Updated
Jul 23, 2026
Vendor
PyTorch
Product
Torchvision
Classifications
CWE-125, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 23, 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=0 <=0.28.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PyTorch · Torchvisionversion=0 <=0.28.0

Published CVSS scores

7.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
7.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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