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python3: Fix CVE-2026-3644 and CVE-2026-0672

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Apply the upstream v3.13 fix [1], as referenced in [2], to address
CVE-2026-3644 by rejecting control characters in http.cookies.Morsel.update(),
the |= operator, and unpickling paths.

CVE-2026-3644 [2] revealed the CVE-2026-0672 fix was incomplete, as
Morsel.update(), |=, and unpickling could bypass input validation. The fix
also adds output validation to BaseCookie.js_output(), matching the
control-character safeguards already present in BaseCookie.output().

[1] https://github.com/python/cpython/commit/d16ecc6c3626f0e2cc8f08c309c83934e8a979dd
[2] https://security-tracker.debian.org/tracker/CVE-2026-3644

References:
https://security-tracker.debian.org/tracker/CVE-2026-3644
https://security-tracker.debian.org/tracker/CVE-2026-0672
https://nvd.nist.gov/vuln/detail/CVE-2026-3644
https://nvd.nist.gov/vuln/detail/CVE-2026-0672

(From OE-Core rev: ac763f139ba7f836d0fa9377295ef7d3b10f2238)

Signed-off-by: Sudhir Dumbhare <sudumbha@cisco.com>
Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Signed-off-by: Paul Barker <paul@pbarker.dev>
This commit is contained in:
Sudhir Dumbhare
2026-06-13 03:11:35 -07:00
committed by Paul Barker
parent 327a87fffb
commit 703b680089
2 changed files with 155 additions and 0 deletions
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meta/recipes-devtools/python/python3_3.12.13.bb
+1
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@@ -36,6 +36,7 @@ SRC_URI = "http://www.python.org/ftp/python/${PV}/Python-${PV}.tar.xz \
file://0001-test_readline-skip-limited-history-test.patch \
file://CVE-2026-1502.patch \
file://CVE-2026-6100.patch \
file://CVE-2026-3644_CVE-2026-0672.patch \
"
SRC_URI:append:class-native = " \