Issues

`queue.Queue.get()` and other `threading.Condition.wait()` callers busy-loop on a NaN timeout

python/cpython#160326 · opened

on Oct 22, 2026

`io.StringIO` crashes or returns garbage when used after a `MemoryError`

python/cpython#160324 · opened

on Oct 22, 2026

`shutil.rmtree()` on a symlink with a trailing slash empties its target

python/cpython#160322 · opened

on Oct 22, 2026

asyncio socket transport sends modified data when a bytearray is changed after `write()`

python/cpython#160321 · opened

on Oct 22, 2026

1

`re.Pattern.match()` matches and can read out of bounds when `pos > endpos`

python/cpython#160316 · opened

on Oct 22, 2026

`lzma` and `bz2` silently ignore a damaged later stream as trailing data

python/cpython#160314 · opened

on Oct 22, 2026

One-shot `decompress()` in `gzip`, `bz2`, `lzma` and `compression.zstd` is quadratic in the number of members

python/cpython#160310 · opened

on Oct 22, 2026

`codecs.StreamReader.read()` silently drops an incomplete character at the end of the stream

python/cpython#160309 · opened

on Oct 22, 2026

The punycode incremental encoder and decoder transform each chunk separately

python/cpython#160308 · opened

on Oct 22, 2026

`euc_jp` and `gb18030` incremental decoders drop input after an incomplete trailing sequence under `surrogateescape`

python/cpython#160307 · opened

on Oct 22, 2026

`iso2022_jp_3` encodes U+9B1D but decodes the result as U+9B1C

python/cpython#160306 · opened

on Oct 22, 2026

`bytearray` reads and writes outside its buffer after `del b[:n]` fails with `MemoryError`

python/cpython#160303 · opened

on Oct 22, 2026

ISO-2022 encoders accept U+001B (and `iso2022_kr` U+000E/U+000F) although the encoding cannot represent them

python/cpython#160302 · opened

on Oct 22, 2026

`http.cookiejar` skips domain checks for cookies with a negative `Version`

python/cpython#160300 · opened

on Oct 22, 2026

symtable: a name read only inside an inlined comprehension is not marked as referenced (3.12+)

python/cpython#160299 · opened

on Oct 22, 2026

1

`tarfile` applies a hard link member's attributes through a symlink extracted in its place

python/cpython#160297 · opened

on Oct 22, 2026

test_forkserver_sigkill: join() can return before the child sets the event

python/cpython#160295 · opened

on Oct 22, 2026

PEG generator assigns a new token type to every occurrence of a keyword

python/cpython#160284 · opened

on Oct 22, 2026

Activating a venv can execute shell commands from a directory name

python/cpython#160280 · opened

on Oct 22, 2026

Creating a venv can run a local ensurepip.py

python/cpython#160279 · opened

on Oct 22, 2026

`tokenize` crashes on a mismatched closing bracket in an f-string replacement field

python/cpython#160268 · opened

on Oct 22, 2026

Tachyon frame cache can write into freed thread-state memory

python/cpython#160267 · opened

on Oct 22, 2026

test_c_stack_unwind fails on Linux sparc64

python/cpython#160253 · opened

on Oct 22, 2026

Reduce padding in the TextIOWrapper structure

python/cpython#160248 · opened

on Oct 22, 2026

2

Reduce padding in the instruction sequence structure

python/cpython#160247 · opened

on Oct 22, 2026

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Issues

`queue.Queue.get()` and other `threading.Condition.wait()` callers busy-loop on a NaN timeout

`io.StringIO` crashes or returns garbage when used after a `MemoryError`

`shutil.rmtree()` on a symlink with a trailing slash empties its target

asyncio socket transport sends modified data when a bytearray is changed after `write()`

`re.Pattern.match()` matches and can read out of bounds when `pos > endpos`

`lzma` and `bz2` silently ignore a damaged later stream as trailing data

One-shot `decompress()` in `gzip`, `bz2`, `lzma` and `compression.zstd` is quadratic in the number of members

`codecs.StreamReader.read()` silently drops an incomplete character at the end of the stream

The punycode incremental encoder and decoder transform each chunk separately

`euc_jp` and `gb18030` incremental decoders drop input after an incomplete trailing sequence under `surrogateescape`

`iso2022_jp_3` encodes U+9B1D but decodes the result as U+9B1C

`bytearray` reads and writes outside its buffer after `del b[:n]` fails with `MemoryError`

ISO-2022 encoders accept U+001B (and `iso2022_kr` U+000E/U+000F) although the encoding cannot represent them

`http.cookiejar` skips domain checks for cookies with a negative `Version`

symtable: a name read only inside an inlined comprehension is not marked as referenced (3.12+)

`tarfile` applies a hard link member's attributes through a symlink extracted in its place

test_forkserver_sigkill: join() can return before the child sets the event

PEG generator assigns a new token type to every occurrence of a keyword

Activating a venv can execute shell commands from a directory name

Creating a venv can run a local ensurepip.py

`tokenize` crashes on a mismatched closing bracket in an f-string replacement field

Tachyon frame cache can write into freed thread-state memory

test_c_stack_unwind fails on Linux sparc64

Reduce padding in the TextIOWrapper structure

Reduce padding in the instruction sequence structure