CVE-2026-40192— Pillow is vulnerable to a FITS GZIP decompression bomb
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I. Basic Information for CVE-2026-40192
Vulnerability Information
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Vulnerability Title
Pillow is vulnerable to a FITS GZIP decompression bomb
Source: NVD (National Vulnerability Database)
Vulnerability Description
Pillow is a Python imaging library. Versions 10.3.0 through 12.1.1 did not limit the amount of GZIP-compressed data read when decoding a FITS image, making them vulnerable to decompression bomb attacks. A specially crafted FITS file could cause unbounded memory consumption, leading to denial of service (OOM crash or severe performance degradation). If users are unable to immediately upgrade, they should only open specific image formats, excluding FITS, as a workaround.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
Pillow 安全漏洞
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至12.1.1版本存在安全漏洞，该漏洞源于解码FITS图像时未限制GZIP压缩数据读取量，可能导致拒绝服务。
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-2026-40192
| # | POC Description | Source Link | Shenlong Link |
|---|
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- 12.2.0 (2026-04-01) - Pillow (PIL Fork) 12.2.0 documentationx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-40192
IV. Related Vulnerabilities
Same product: Pillow
- CVE-2026-42311
Pillow: OOB Write with Invalid PSD Tile Extents (Integer Ove - 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-2026-25990
Pillow has an out-of-bounds write when loading PSD images
Same vendor: python-pillow
- CVE-2026-42311
Pillow: OOB Write with Invalid PSD Tile Extents (Integer Ove - 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-2026-25990
Pillow has an out-of-bounds write when loading PSD images
Same weakness: CWE-770
- CVE-2026-42294
Argo Workflows: Unauthenticated Memory Exhaustion (DoS) in W - CVE-2026-42189
Russh: Pre-auth DoS via unbounded allocation in keyboard-int - CVE-2026-42793
Atom table exhaustion via attacker-controlled GraphQL SDL na - CVE-2026-44499
ZEBRA: Permanent Block Discovery Halt via Gossip Queue Satur - CVE-2026-44500
ZEBRA: Allocation Amplification in Inbound Network Deseriali
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