python3-pyjwt: Fix CVE-2026-32597

Details https://nvd.nist.gov/vuln/detail/CVE-2026-32597

Backport commit[1] which fixes this vulnerability as mentioned in changelog[2]

Dropped changes to the changelog, version bump and tests during backport.

[1] https://github.com/jpadilla/pyjwt/commit/051ea341b5573fe3edcd53042f347929b92c2b92
[2] https://github.com/jpadilla/pyjwt/blob/2.12.0/CHANGELOG.rst

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>

2 files changed, 81 insertions, 0 deletions

diff --git a/meta-python/recipes-devtools/python/python3-pyjwt/CVE-2026-32597.patch b/meta-python/recipes-devtools/python/python3-pyjwt/CVE-2026-32597.patch
new file mode 100644
index 0000000000..7fec45e13c
--- /dev/null
+++ b/meta-python/recipes-devtools/python/python3-pyjwt/CVE-2026-32597.patch
@@ -0,0 +1,79 @@
+From c77d816548bd768df262ba0204904168584c0bd1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jos=C3=A9=20Padilla?= <jpadilla@webapplicate.com>
+Date: Thu, 12 Mar 2026 12:46:08 -0400
+Subject: [PATCH] Merge commit from fork
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Co-authored-by: José Padilla <jpadilla@users.noreply.github.com>
+
+CVE: CVE-2026-32597
+Upstream-Status: Backport [https://github.com/jpadilla/pyjwt/commit/051ea341b5573fe3edcd53042f347929b92c2b92]
+
+Dropped changes to the changelog, version bump and tests during backport.
+
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ jwt/api_jws.py | 27 +++++++++++++++++++++++++--
+ 1 file changed, 25 insertions(+), 2 deletions(-)
+
+diff --git a/jwt/api_jws.py b/jwt/api_jws.py
+index 654ee0b..db2c80f 100644
+--- a/jwt/api_jws.py
++++ b/jwt/api_jws.py
+@@ -137,7 +137,7 @@ class PyJWS:
+         header: dict[str, Any] = {"typ": self.header_typ, "alg": algorithm_}
+ 
+         if headers:
+-            self._validate_headers(headers)
++            self._validate_headers(headers, encoding=True)
+             header.update(headers)
+ 
+         if not header["typ"]:
+@@ -208,6 +208,8 @@ class PyJWS:
+ 
+         payload, signing_input, header, signature = self._load(jwt)
+ 
++        self._validate_headers(header)
++
+         if header.get("b64", True) is False:
+             if detached_payload is None:
+                 raise DecodeError(
+@@ -327,14 +329,35 @@ class PyJWS:
+         if not alg_obj.verify(signing_input, prepared_key, signature):
+             raise InvalidSignatureError("Signature verification failed")
+ 
+-    def _validate_headers(self, headers: dict[str, Any]) -> None:
++    # Extensions that PyJWT actually understands and supports
++    _supported_crit: set[str] = {"b64"}
++
++    def _validate_headers(
++        self, headers: dict[str, Any], *, encoding: bool = False
++    ) -> None:
+         if "kid" in headers:
+             self._validate_kid(headers["kid"])
++        if not encoding and "crit" in headers:
++            self._validate_crit(headers)
+ 
+     def _validate_kid(self, kid: Any) -> None:
+         if not isinstance(kid, str):
+             raise InvalidTokenError("Key ID header parameter must be a string")
+ 
++    def _validate_crit(self, headers: dict[str, Any]) -> None:
++        crit = headers["crit"]
++        if not isinstance(crit, list) or len(crit) == 0:
++            raise InvalidTokenError("Invalid 'crit' header: must be a non-empty list")
++        for ext in crit:
++            if not isinstance(ext, str):
++                raise InvalidTokenError("Invalid 'crit' header: values must be strings")
++            if ext not in self._supported_crit:
++                raise InvalidTokenError(f"Unsupported critical extension: {ext}")
++            if ext not in headers:
++                raise InvalidTokenError(
++                    f"Critical extension '{ext}' is missing from headers"
++                )
++
+ 
+ _jws_global_obj = PyJWS()
+ encode = _jws_global_obj.encode
diff --git a/meta-python/recipes-devtools/python/python3-pyjwt_2.10.1.bb b/meta-python/recipes-devtools/python/python3-pyjwt_2.10.1.bb
index 3954c526f5..981f79a743 100644
--- a/meta-python/recipes-devtools/python/python3-pyjwt_2.10.1.bb
+++ b/meta-python/recipes-devtools/python/python3-pyjwt_2.10.1.bb
@@ -5,6 +5,8 @@ HOMEPAGE = "https://github.com/jpadilla/pyjwt"
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=e4b56d2c9973d8cf54655555be06e551"
 
+SRC_URI += "file://CVE-2026-32597.patch"
+
 SRC_URI[sha256sum] = "3cc5772eb20009233caf06e9d8a0577824723b44e6648ee0a2aedb6cf9381953"
 
 PYPI_PACKAGE = "pyjwt"