What is "py-build"?

A simple, correct Python build frontend

How to use this package

Quick install

Installs the package into the current environment for this session. Use --build or --runtime to persist it as a build-time or runtime dependency.

min add py-build

Declare as a task dependency in minimal.toml

Listing the package under tasks.<name>.packages makes it available inside that task’s sandbox.

[tasks.dev]
packages = ["py-build"]

Build-time vs runtime

Choose build-time for tools needed during compilation, runtime for dynamic libraries loaded at runtime.

min add --build py-build
min add --runtime py-build

Compare versions

to

Dependencies (4)

Dependencies
Name	Version	Kind
base	—	build
py-packaging	26.3	runtime
pyproject-hooks	1.3.3	runtime
python CVE:1	3.14.10	runtime

Dependency changes

No dependants

No other packages in the registry depend on this one.

py-build v1.6.1840fd07
Diff
Lines:+2 / -2Deps:4
Released: last month
py-build v1.5.11117d4f
Diff
Lines:+2 / -2Deps:4
Released: 3 months ago
py-build v1.3.01975757
Diff
Lines:+52 / -2Deps:4(+4)
Released: 5 months ago
1. 1975757
  Diff
  Lines:+1Deps:4
  Released: 5 months ago
2. d5f3579
  Diff
  Lines:+2 / -2Deps:4
  Released: 6 months ago
3. da2c992
  Diff
  Lines:+49Deps:4(+4)
  Released: 7 months ago

No direct advisories

This package inherits 5 transitive advisories from its dependencies.

Include transitive

Showing 5 transitive advisories via py-build's dependencies

Security advisories for this package
	Status	IDs	Package	Version	Severity	Published
Critical (0)
High (4)
	Status	IDs	Package	Version	Severity	Published
	Under investigation	CVE-2026-115506	expat	2.8.4 – 2.9.0	High	6 days ago
Summary libexpat through 2.9.0 Denial of Service via Billion Laughs Detection Delay Via python expat Affected ranges 2.8.4 – 2.9.0 References Advisory: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115506.json, https://nvd.nist.gov/vuln/detail/CVE-2026-115506, https://www.vulncheck.com/advisories/libexpat-through-2.9.0-denial-of-service-via-billion-laughs-detection-delay Fix: https://github.com/libexpat/libexpat/pull/1433 Report: https://github.com/libexpat/libexpat/issues/1160 Evidence: https://github.com/hannob/lololol PACKAGE: https://github.com/libexpat/libexpat
	Under investigation	CVE-2026-113351	expat	2.8.4 – 2.9.0	High	8 days ago
Summary libexpat 2.7.2 through 2.9.0 Denial of Service via XML_ParserReset Via python expat Affected ranges 2.8.4 – 2.9.0 References Advisory: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113351.json, https://nvd.nist.gov/vuln/detail/CVE-2026-113351, https://www.vulncheck.com/advisories/libexpat-2.7.2-through-2.9.0-denial-of-service-via-xml-parserreset Fix: https://github.com/libexpat/libexpat/pull/1431 PACKAGE: https://github.com/libexpat/libexpat ARTICLE: https://github.com/libexpat/libexpat/blob/a76b1174c1ea52abb639a4c69d52b630a8a106a2/expat/lib/xmlparse.c#L1560, https://github.com/libexpat/libexpat/blob/a76b1174c1ea52abb639a4c69d52b630a8a106a2/expat/lib/xmlparse.c#L860-L884
	Affected: 1.3.2	CVE-2026-85091	zlib	1.3.2	High	2 months ago
Summary zlib 1.3.1.2 through 1.3.2 Heap Buffer Overflow via gz_vacate Via python zlib Affected ranges 1.3.2 References Advisory: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85091.json, https://nvd.nist.gov/vuln/detail/CVE-2026-85091, https://www.vulncheck.com/advisories/zlib-1.3.1.2-through-1.3.2-heap-buffer-overflow-via-gz-vacate Evidence: https://gist.github.com/thesmartshadow/e0b9481792afb7c31e86fee1ff084490 PACKAGE: https://github.com/madler/zlib ARTICLE: https://github.com/madler/zlib/blob/v1.3.2/gzwrite.c#L393
	Under investigation	GHSA-g84c-rxfj-3j2c CVE-2026-76844	zlib	1.3 – 1.3.2	High	2 months ago
Summary zlib 1.2.11 through 1.3.2 Heap Buffer Overflow via Stale gzwrite Pointer After Failed Write Via python zlib Affected ranges 1.3 – 1.3.2 References Advisory: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76844.json, https://nvd.nist.gov/vuln/detail/CVE-2026-76844, https://www.vulncheck.com/advisories/zlib-1.3.1.2-through-1.3.2-heap-buffer-overflow-via-gz-vacate Fix: https://github.com/madler/zlib/commit/df84af25dc1942490e1d1c899a07619152a46148 Evidence: https://gist.github.com/thesmartshadow/e0b9481792afb7c31e86fee1ff084490 PACKAGE: https://github.com/madler/zlib ARTICLE: https://github.com/madler/zlib/blob/v1.3.2/gzwrite.c#L393
Medium (1)
	Status	IDs	Package	Version	Severity	Published
	Under investigation	BIT-libpython-2025-15367 BIT-python-2025-15367 BIT-python-min-2025-15367 PSF-2026-4 CVE-2025-15367	python	3.14.8 – 3.14.10	Medium	9 months ago
Summary POP3 command injection in user-controlled commands Via python Affected ranges 3.14.8 – 3.14.10 References Advisory: https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/15xxx/CVE-2025-15367.json, https://mail.python.org/archives/list/security-announce@python.org/thread/CBFBOWVGGUJFSGITQCCBZS4GEYYZ7ZNE/, https://nvd.nist.gov/vuln/detail/CVE-2025-15367 Fix: https://github.com/python/cpython/commit/b234a2b67539f787e191d2ef19a7cbdce32874e7, https://github.com/python/cpython/pull/143924 Report: https://github.com/python/cpython/issues/143923 PACKAGE: https://github.com/python/cpython
Low (0)
	Status	IDs	Package	Version	Severity	Published
Unknown (0)
	Status	IDs	Package	Version	Severity	Published

Build provenance

For the signed record of what the build used, see the Provenance tab.

49 components

Software Bill of Materials — every package this build depends on
Packages	Version	Repository	License
py-buildROOT	1.6.1	github.com/pypa/build	MIT
acl	2.4.0	https://storage.googleapis.com/minimal-staging-archives/acl-2.4.0.tar.xzMIRROR	(GPL-2.0-only AND LGPL-2.1-only)
attr	2.6.0	https://storage.googleapis.com/minimal-staging-archives/attr-2.6.0.tar.gzMIRROR	(GPL-2.0-only AND LGPL-2.1-only)
bash	5.3	www.gnu.org/software/bash	GPL-3.0-only
bash-bootstrap	5.3	www.gnu.org/software/bash	GPL-3.0-only
binutils	2.47	www.gnu.org/software/binutils	(GPL-2.0-only AND GPL-3.0-only AND LGPL-2.0-only)
bison	3.8.2	www.gnu.org/software/bison	GPL-3.0-only
bzip2	1.0.8	github.com/libarchive/bzip2	bzip2-1.0.6
coreutils	9.12	www.gnu.org/software/coreutils	GPL-3.0-only
diffutils	3.12	www.gnu.org/software/diffutils	GPL-3.0-only
expat	2.9.0	github.com/libexpat/libexpat	MIT
file	5.48	https://storage.googleapis.com/minimal-staging-archives/file-5.48.tar.gzMIRROR	BSD-2-Clause-Darwin
findutils	4.11.0	www.gnu.org/software/findutils	GPL-3.0-only
flex	2.6.4	github.com/westes/flex	BSD-3-Clause-flex
flit-core	4.1.0	github.com/pypa/flit	BSD-3-Clause
gawk	5.4.1	www.gnu.org/software/gawk	GPL-3.0-only
gawk-bootstrap	5.4.1	www.gnu.org/software/gawk	GPL-3.0-only
gcc	15.2.0	www.gnu.org/software/gcc	(GPL-2.0-only AND GPL-3.0-only AND LGPL-2.1-only)
gdbm	1.26	www.gnu.org/software/gdbm	GPL-3.0-only
glibc	2.44	www.gnu.org/software/glibc	(GPL-2.0-only AND LGPL-2.1-only)
gmp	6.3.0	www.gnu.org/software/gmp	LGPL-3.0-or-later OR GPL-2.0-or-later
grep	3.12	www.gnu.org/software/grep	GPL-3.0-only
gzip	1.15	www.gnu.org/software/gzip	GPL-3.0-only
libcap	2.78	https://storage.googleapis.com/minimal-staging-archives/libcap-2.78.tar.xzMIRROR	BSD-3-Clause OR GPL-2.0-only
libffi	3.8.0	github.com/libffi/libffi	MIT
linux_headers	6.12.43	github.com/torvalds/linux	GPL-2.0-only WITH Linux-syscall-note
lz4	1.10.0	github.com/lz4/lz4	BSD-2-Clause AND GPL-2.0-or-later
m4	1.4.21	www.gnu.org/software/m4	GPL-3.0-only
make	4.4.1	www.gnu.org/software/make	GPL-3.0-only
mpc	1.4.1	www.gnu.org/software/mpc	LGPL-3.0-or-later
mpfr	4.2.2	www.gnu.org/software/mpfr	GPL-3.0-only
ncurses	6.6	www.gnu.org/software/ncurses	X11-distribute-modifications-variant
openssl	3.6.5	github.com/openssl/openssl	Apache-2.0
patch	2.8.1	www.gnu.org/software/patch	GPL-3.0-only
pcre2	10.49	github.com/PCRE2Project/pcre2	BSD-3-Clause WITH PCRE2-exception
perl	5.44.0	github.com/Perl/perl5	Artistic-1.0-Perl OR GPL-1.0-or-later
pkgconf	3.0.5	github.com/pkgconf/pkgconf	ISC
py-packaging	26.3	github.com/pypa/packaging	Apache-2.0 OR BSD-2-Clause
pyproject-hooks	1.3.3	github.com/pypa/pyproject-hooks	MIT
python	3.14.10	github.com/python/cpython	Python-2.0.1
readline	8.3	www.gnu.org/software/readline	GPL-3.0-only
sed	4.10	www.gnu.org/software/sed	GPL-3.0-only
sqlite	3.54.0	github.com/sqlite/sqlite	blessing
tar	1.35	www.gnu.org/software/tar	GPL-3.0-only
tzdata	2026e	github.com/eggert/tz	LicenseRef-Public-Domain
util-linux	2.42.4	github.com/util-linux/util-linux	GPL-2.0-or-later AND LGPL-2.1-or-later AND BSD-3-Clause
xz	5.8.4	github.com/tukaani-project/xz	(0BSD AND GPL-2.0-only AND GPL-3.0-only AND LGPL-2.1-only)
zlib	1.3.2	github.com/madler/zlib	Zlib
zstd	1.5.7	github.com/facebook/zstd	BSD-3-Clause OR GPL-2.0-only

View packages at a commit

py-build

Install package

OpenSSF Score

OpenSSF Scorecard — py-build

What is "py-build"?

How to use this package

Quick install

Declare as a task dependency in minimal.toml

Build-time vs runtime

Dependencies (4)

Dependency changes

Summary

Via

Affected ranges

References

Summary

Via

Affected ranges

References

Summary

Via

Affected ranges

References

Summary

Via

Affected ranges

References

Summary

Via

Affected ranges

References

Build provenance

Build provenance

Build provenance

49 components

Join the waitlist

Check your email