Vulnerabilities (CVE)

Filtered by vendor Python Subscribe
Total 316 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-28675 2 Fedoraproject, Python 2 Fedora, Pillow 2026-06-17 4.3 MEDIUM 5.5 MEDIUM
An issue was discovered in Pillow before 8.2.0. PSDImagePlugin.PsdImageFile lacked a sanity check on the number of input layers relative to the size of the data block. This could lead to a DoS on Image.open prior to Image.load.
CVE-2021-28667 2 Python, Stackstorm 2 Python, Stackstorm 2026-06-17 7.1 HIGH 7.5 HIGH
StackStorm before 3.4.1, in some situations, has an infinite loop that consumes all available memory and disk space. This can occur if Python 3.x is used, the locale is not utf-8, and there is an attempt to log Unicode data (from an action or rule name).
CVE-2021-27923 2 Fedoraproject, Python 2 Fedora, Pillow 2026-06-17 5.0 MEDIUM 7.5 HIGH
Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICO container, and thus an attempted memory allocation can be very large.
CVE-2021-27922 2 Fedoraproject, Python 2 Fedora, Pillow 2026-06-17 5.0 MEDIUM 7.5 HIGH
Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICNS container, and thus an attempted memory allocation can be very large.
CVE-2021-27921 2 Fedoraproject, Python 2 Fedora, Pillow 2026-06-17 5.0 MEDIUM 7.5 HIGH
Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for a BLP container, and thus an attempted memory allocation can be very large.
CVE-2021-25293 1 Python 1 Pillow 2026-06-17 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Pillow before 8.1.1. There is an out-of-bounds read in SGIRleDecode.c.
CVE-2021-25292 1 Python 1 Pillow 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.
CVE-2021-25291 1 Python 1 Pillow 2026-06-17 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Pillow before 8.1.1. In TiffDecode.c, there is an out-of-bounds read in TiffreadRGBATile via invalid tile boundaries.
CVE-2021-25290 2 Debian, Python 2 Debian Linux, Pillow 2026-06-17 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Pillow before 8.1.1. In TiffDecode.c, there is a negative-offset memcpy with an invalid size.
CVE-2021-25289 1 Python 1 Pillow 2026-06-17 7.5 HIGH 9.8 CRITICAL
An issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654.
CVE-2021-25288 2 Fedoraproject, Python 2 Fedora, Pillow 2026-06-17 6.4 MEDIUM 9.1 CRITICAL
An issue was discovered in Pillow before 8.2.0. There is an out-of-bounds read in J2kDecode, in j2ku_gray_i.
CVE-2021-25287 2 Fedoraproject, Python 2 Fedora, Pillow 2026-06-17 6.4 MEDIUM 9.1 CRITICAL
An issue was discovered in Pillow before 8.2.0. There is an out-of-bounds read in J2kDecode, in j2ku_graya_la.
CVE-2021-23437 2 Fedoraproject, Python 2 Fedora, Pillow 2026-06-17 5.0 MEDIUM 7.5 HIGH
The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.
CVE-2020-7212 1 Python 1 Urllib3 2026-06-17 7.8 HIGH 7.5 HIGH
The _encode_invalid_chars function in util/url.py in the urllib3 library 1.25.2 through 1.25.7 for Python allows a denial of service (CPU consumption) because of an inefficient algorithm. The percent_encodings array contains all matches of percent encodings. It is not deduplicated. For a URL of length N, the size of percent_encodings may be up to O(N). The next step (normalize existing percent-encoded bytes) also takes up to O(N) for each step, so the total time is O(N^2). If percent_encodings were deduplicated, the time to compute _encode_invalid_chars would be O(kN), where k is at most 484 ((10+6*2)^2).
CVE-2020-5313 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2026-06-17 5.8 MEDIUM 7.1 HIGH
libImaging/FliDecode.c in Pillow before 6.2.2 has an FLI buffer overflow.
CVE-2020-5312 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2026-06-17 7.5 HIGH 9.8 CRITICAL
libImaging/PcxDecode.c in Pillow before 6.2.2 has a PCX P mode buffer overflow.
CVE-2020-5311 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2026-06-17 7.5 HIGH 9.8 CRITICAL
libImaging/SgiRleDecode.c in Pillow before 6.2.2 has an SGI buffer overflow.
CVE-2020-5310 3 Canonical, Fedoraproject, Python 3 Ubuntu Linux, Fedora, Pillow 2026-06-17 6.8 MEDIUM 8.8 HIGH
libImaging/TiffDecode.c in Pillow before 6.2.2 has a TIFF decoding integer overflow, related to realloc.
CVE-2020-35655 2 Fedoraproject, Python 2 Fedora, Pillow 2026-06-17 5.8 MEDIUM 5.4 MEDIUM
In Pillow before 8.1.0, SGIRleDecode has a 4-byte buffer over-read when decoding crafted SGI RLE image files because offsets and length tables are mishandled.
CVE-2020-35654 2 Fedoraproject, Python 2 Fedora, Pillow 2026-06-17 6.8 MEDIUM 8.8 HIGH
In Pillow before 8.1.0, TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode.