CVE-2026-42311— Pillow: OOB Write with Invalid PSD Tile Extents (Integer Overflow)
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I. Basic Information for CVE-2026-42311
Vulnerability Information
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Vulnerability Title
Pillow: OOB Write with Invalid PSD Tile Extents (Integer Overflow)
Source: NVD (National Vulnerability Database)
Vulnerability Description
Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution. This issue has been patched in version 12.2.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
整数溢出或超界折返
Source: NVD (National Vulnerability Database)
Vulnerability Title
Pillow 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pillow是Pillow开源的一款基于Python的图像处理库。 Pillow 10.3.0版本至12.2.0之前版本存在输入验证错误漏洞，该漏洞源于处理恶意PSD文件可能导致内存损坏，可能导致崩溃或任意代码执行。
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 |
|---|---|---|---|---|
| python-pillow | Pillow | >= 10.3.0, < 12.2.0 | - |
II. Public POCs for CVE-2026-42311
| # | POC Description | Source Link | Shenlong Link |
|---|
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- Release 12.2.0 · python-pillow/Pillow · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-42311
Same Patch Batch · python-pillow · 2026-05-09 · 4 CVEs total
| CVE-2026-42308 | Pillow: Integer overflow when processing fonts | |
| CVE-2026-42310 | Pillow: PDF Parsing Trailer Infinite Loop (DoS) | |
| CVE-2026-42309 | Pillow: Heap buffer overflow with nested list coordinates |
IV. Related Vulnerabilities
Same product: Pillow
- CVE-2026-42310
Pillow: PDF Parsing Trailer Infinite Loop (DoS) - CVE-2026-42308
Pillow: Integer overflow when processing fonts - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - CVE-2026-40192
Pillow is vulnerable to a FITS GZIP decompression bomb - CVE-2026-25990
Pillow has an out-of-bounds write when loading PSD images
Same vendor: python-pillow
- CVE-2026-42310
Pillow: PDF Parsing Trailer Infinite Loop (DoS) - CVE-2026-42308
Pillow: Integer overflow when processing fonts - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - CVE-2026-40192
Pillow is vulnerable to a FITS GZIP decompression bomb - CVE-2026-25990
Pillow has an out-of-bounds write when loading PSD images
Same weakness: CWE-190
- CVE-2021-26380
Trusted OS驱动内存越界致完整性丢失 - CVE-2026-44673
libyang: lyb_read_string() integer overflow → heap buffer ov - CVE-2026-44637
libsixel: integer overflow in parser - CVE-2026-43905
OpenImageIO: JPEG2000 (OpenJPH) signed integer overflow in b - CVE-2026-43907
OpenImageIO: Integer overflow in QueryRGBBufferSizeInternal
V. Comments for CVE-2026-42311
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