new file mode 100644
@@ -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
@@ -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"