CVE-2026-65918— PyTorch torchvision GIF Decoder Out-of-bounds Heap Read
Quick assessment
Affected
pytorch vision
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
PyTorch是PyTorch基金会开源的一个 Python 包。 PyTorch 0.28.0及之前版本存在缓冲区错误漏洞，该漏洞源于GIF解码器的read_from_tensor回调函数中未对memcpy长度参数进行限制，导致越界堆读取，攻击者可通过提供恶意或截断的GIF文件造成拒绝服务或泄露相邻堆内存内容。
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I. Basic Information for CVE-2026-65918
Vulnerability Information
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Vulnerability Title
PyTorch torchvision GIF Decoder Out-of-bounds Heap Read
Source: CVE Program / CVE List V5
Vulnerability Description
PyTorch torchvision through 0.28.0, fixed in commit 4e05dc2, contains an out-of-bounds heap read vulnerability in the GIF decoder's read_from_tensor callback that passes unclamped length to memcpy. Attackers can supply malicious or truncated GIF files to cause denial of service via segmentation fault or disclose adjacent heap memory contents.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
PyTorch 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PyTorch是PyTorch基金会开源的一个 Python 包。 PyTorch 0.28.0及之前版本存在缓冲区错误漏洞，该漏洞源于GIF解码器的read_from_tensor回调函数中未对memcpy长度参数进行限制，导致越界堆读取，攻击者可通过提供恶意或截断的GIF文件造成拒绝服务或泄露相邻堆内存内容。
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
II. Public POCs for CVE-2026-65918
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Qwen3.6-35B-A3B
· 10478 chars
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III. Intelligence Information for CVE-2026-65918
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Patches & Fixes for CVE-2026-65918 (2)
Vendor Advisories for CVE-2026-65918 (1)
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🔗 PyTorch torchvision GIF Decoder Out-of-bounds Heap Read | Advisories | VulnCheck third-party-advisory
Security Blog Posts for CVE-2026-65918 (1)
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🔗 Out-of-bounds read in the GIF decoder when decoding an untrusted image · Issue #9551 · pytorch/vision Read full article technical-description exploit
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V. Comments for CVE-2026-65918
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