Search results

Upgrade bundled Expat to 2.8.1 (e.g. for the fix to CVE-2026-45186)

3.10only security fixesonly security fixes

3.11only security fixesonly security fixes

3.12only security fixesonly security fixes

3.13bugs and security fixesbugs and security fixes

3.14bugs and security fixesbugs and security fixes

3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixes

3.16new features, bugs and security fixesnew features, bugs and security fixes

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-XML

type-securityA security issueA security issue

Status: Open.

#149698 In python/cpython;

· hartwork opened on May 11, 2026

JIT shim object drops GNU property notes (CET/BTI/PAC) from output binaries

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-JIT

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#149697 In python/cpython;

· stratakis opened on May 11, 2026

asyncio.iscoroutinefunction has no docstring due to misplaced import statement

3.14bugs and security fixesbugs and security fixes

3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixes

docsDocumentation in the Doc dirDocumentation in the Doc dir

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-asyncio

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#149694 In python/cpython;

· deadlovelll opened on May 11, 2026

Heap corruption in re.findall under sustained allocation load on Python 3.12.x (Linux x86_64)

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-regex

type-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump

Status: Open.

#149692 In python/cpython;

· bill-taut opened on May 11, 2026

Missing error / null pointer checks in Parser/action_helpers.c

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-parser

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#149689 In python/cpython;

· KowalskiThomas opened on May 11, 2026

Use _Py prefix for private C API added in 3.15

topic-C-API

type-refactorCode refactoring (with no changes in behavior)Code refactoring (with no changes in behavior)

Status: Open.

#149685 In python/cpython;

· encukou opened on May 11, 2026

SSLContext.load_verify_locations(cadata=...) does not accept CRLs (unlike cafile and capath)

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149679 In python/cpython;

· uedvt359 opened on May 11, 2026

frozendict's hash is not initialised when created through pipe operator

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#149676 In python/cpython;

· KowalskiThomas opened on May 11, 2026

tarfile: Appending nothing to a TAR with PAX global headers corrupts it

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#149674 In python/cpython;

· spbnick opened on May 11, 2026

PEP 829: KeyError: "local variable ''sitedir'' is not defined"

3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixes

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#149671 In python/cpython;

· hugovk opened on May 11, 2026

-X lazy_imports=all should not apply to exec() inside functions

3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixes

3.16new features, bugs and security fixesnew features, bugs and security fixes

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-lazy-imports

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#149642 In python/cpython;

· JelleZijlstra opened on May 10, 2026

Should we test -X lazy_imports=all more?

3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixes

3.16new features, bugs and security fixesnew features, bugs and security fixes

testsTests in the Lib/test dirTests in the Lib/test dir

topic-lazy-imports

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#149640 In python/cpython;

· JelleZijlstra opened on May 10, 2026