Filtered by vendor Python
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Total
275 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-21441 | 1 Python | 1 Urllib3 | 2026-09-15 | N/A | 7.5 HIGH |
| urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP `Content-Encoding` header (e.g., `gzip`, `deflate`, `br`, or `zstd`). When using the streaming API, the library decompresses only the necessary bytes, enabling partial content consumption. Starting in version 1.22 and prior to version 2.6.3, for HTTP redirect responses, the library would read the entire response body to drain the connection and decompress the content unnecessarily. This decompression occurred even before any read methods were called, and configured read limits did not restrict the amount of decompressed data. As a result, there was no safeguard against decompression bombs. A malicious server could exploit this to trigger excessive resource consumption on the client. Applications and libraries are affected when they stream content from untrusted sources by setting `preload_content=False` when they do not disable redirects. Users should upgrade to at least urllib3 v2.6.3, in which the library does not decode content of redirect responses when `preload_content=False`. If upgrading is not immediately possible, disable redirects by setting `redirect=False` for requests to untrusted source. | |||||
| CVE-2026-44432 | 1 Python | 1 Urllib3 | 2026-09-10 | N/A | 7.5 HIGH |
| urllib3 is an HTTP client library for Python. From 2.6.0 to before 2.7.0, urllib3 could decompress the whole response instead of the requested portion (1) during the second HTTPResponse.read(amt=N) call when the response was decompressed using the official Brotli library or (2) when HTTPResponse.drain_conn() was called after the response had been read and decompressed partially (compression algorithm did not matter here). These issues could cause urllib3 to fully decode a small amount of highly compressed data in a single operation. This could result in excessive resource consumption (high CPU usage and massive memory allocation for the decompressed data) on the client side. This vulnerability is fixed in 2.7.0. | |||||
| CVE-2026-40192 | 1 Python | 1 Pillow | 2026-09-10 | N/A | 7.5 HIGH |
| 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. | |||||
| CVE-2026-25990 | 1 Python | 1 Pillow | 2026-09-10 | N/A | 7.5 HIGH |
| Pillow is a Python imaging library. From 10.3.0 to before 12.1.1, an out-of-bounds write may be triggered when loading a specially crafted PSD image. This vulnerability is fixed in 12.1.1. | |||||
| CVE-2025-13837 | 1 Python | 1 Python | 2026-09-03 | N/A | 5.5 MEDIUM |
| When loading a plist file, the plistlib module reads data in size specified by the file itself, meaning a malicious file can cause OOM and DoS issues | |||||
| CVE-2025-13836 | 1 Python | 1 Python | 2026-09-03 | N/A | 7.5 HIGH |
| When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This allows a malicious server to cause the client to read large amounts of data into memory, potentially causing OOM or other DoS. | |||||
| CVE-2026-15308 | 1 Python | 1 Python | 2026-08-20 | N/A | 7.5 HIGH |
| The incremental HTML parser (html.parser.HTMLParser) allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data. | |||||
| CVE-2026-0864 | 1 Python | 1 Python | 2026-08-18 | N/A | 5.5 MEDIUM |
| When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters (\r) the resulting file could be injected with unexpected keys and values if the attacker controls the written value. | |||||
| CVE-2026-7210 | 1 Python | 1 Python | 2026-08-14 | N/A | 7.5 HIGH |
| `xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding protection, which allows a crafted XML document to trigger hash flooding.\r\n\r\nFully mitigating this vulnerability requires both updating libexpat to 2.8.0 or later and applying this patch. | |||||
| CVE-2026-4519 | 1 Python | 1 Python | 2026-08-13 | N/A | 3.3 LOW |
| The webbrowser.open() API would accept leading dashes in the URL which could be handled as command line options for certain web browsers. New behavior rejects leading dashes. Users are recommended to sanitize URLs prior to passing to webbrowser.open(). | |||||
| CVE-2026-4360 | 1 Python | 1 Python | 2026-08-13 | N/A | 5.3 MEDIUM |
| In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks. An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='data' to the extract() function. | |||||
| CVE-2026-4224 | 1 Python | 1 Python | 2026-08-13 | N/A | 7.5 HIGH |
| When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs. | |||||
| CVE-2026-3644 | 1 Python | 1 Python | 2026-08-13 | N/A | 7.5 HIGH |
| The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the output validation applied to BaseCookie.output(). | |||||
| CVE-2026-3087 | 2 Microsoft, Python | 2 Windows, Python | 2026-08-13 | N/A | 7.5 HIGH |
| If `shutil.unpack_archive()` is given a ZIP archive with an absolute Windows path containing a drive (`C:\\...`) then the archive will be extracted outside the target directory which is different than other operating systems. Only Windows is affected by this vulnerability. | |||||
| CVE-2025-13462 | 1 Python | 1 Python | 2026-08-13 | N/A | 3.3 LOW |
| The "tarfile" module would still apply normalization of AREGTYPE (\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations. | |||||
| CVE-2026-54058 | 1 Python | 1 Pillow | 2026-08-06 | N/A | 9.1 CRITICAL |
| Pillow is a Python imaging library. Prior to 12.3.0, when Pillow loads an uncompressed McIdas AREA image from a filename through the mmap raw codec path, attacker-controlled header words can set a row stride smaller than the natural row width, causing pixel access such as Image.tobytes(), getpixel, convert, or save to read beyond the mapped region and disclose adjacent process memory or fault. This issue is fixed in version 12.3.0. | |||||
| CVE-2026-32274 | 1 Python | 1 Black | 2026-08-03 | N/A | 7.5 HIGH |
| Black is the uncompromising Python code formatter. Starting in version 24.3.0 and prior to version 26.3.1, Black writes a cache file, the name of which is computed from various formatting options. The value of the --python-cell-magics option was placed in the filename without sanitization, which allowed an attacker who controls the value of this argument to write cache files to arbitrary file system locations. Fixed in Black 26.3.1. | |||||
| CVE-2023-6507 | 1 Python | 1 Python | 2026-07-31 | N/A | 6.1 MEDIUM |
| An issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases. When using the `extra_groups=` parameter with an empty list as a value (ie `extra_groups=[]`) the logic regressed to not call `setgroups(0, NULL)` before calling `exec()`, thus not dropping the original processes' groups before starting the new process. There is no issue when the parameter isn't used or when any value is used besides an empty list. This issue only impacts CPython processes run with sufficient privilege to make the `setgroups` system call (typically `root`). | |||||
| CVE-2025-6075 | 1 Python | 1 Python | 2026-07-31 | N/A | 5.5 MEDIUM |
| If the value passed to os.path.expandvars() is user-controlled a performance degradation is possible when expanding environment variables. | |||||
| CVE-2026-6019 | 1 Python | 1 Python | 2026-07-27 | N/A | 6.1 MEDIUM |
| http.cookies.Morsel.js_output() returns an inline <script> snippet and only escapes " for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence </script> inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value. | |||||