diff --git a/changelog/_14702.txt b/changelog/_14702.txt
new file mode 100644
index 0000000000..85178bf8dc
--- /dev/null
+++ b/changelog/_14702.txt
@@ -0,0 +1,3 @@
+```release-note:change
+auth/jwt: Update plugin to [v0.26.3](https://github.com/hashicorp/vault-plugin-auth-jwt/releases/tag/v0.26.3)
+```
diff --git a/go.mod b/go.mod
index e20e46f367..a061b6db50 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ module github.com/hashicorp/vault
 // semantic related to Go module handling), this comment should be updated to explain that.
 //
 // Whenever this value gets updated, sdk/go.mod should be updated to the same value.
-go 1.26.1
+go 1.26.3
 
 replace github.com/hashicorp/vault/api => ./api
 
@@ -146,7 +146,7 @@ require (
 	github.com/hashicorp/vault-plugin-auth-azure v0.24.0
 	github.com/hashicorp/vault-plugin-auth-cf v0.23.0
 	github.com/hashicorp/vault-plugin-auth-gcp v0.23.1
-	github.com/hashicorp/vault-plugin-auth-jwt v0.26.1
+	github.com/hashicorp/vault-plugin-auth-jwt v0.26.3
 	github.com/hashicorp/vault-plugin-auth-kerberos v0.17.1
 	github.com/hashicorp/vault-plugin-auth-kubernetes v0.24.1
 	github.com/hashicorp/vault-plugin-auth-oci v0.21.1
diff --git a/go.sum b/go.sum
index 8cc68dc53e..ed04227d5d 100644
--- a/go.sum
+++ b/go.sum
@@ -868,8 +868,8 @@ github.com/hashicorp/vault-plugin-auth-cf v0.23.0 h1:9xXHg2qcHmYAcQ+gN3stRBHTbbP
 github.com/hashicorp/vault-plugin-auth-cf v0.23.0/go.mod h1:CmyxJai6vSQo/3ipQYtyWzaDQvXwTm1LboU3wHcxwHY=
 github.com/hashicorp/vault-plugin-auth-gcp v0.23.1 h1:E13iJgR6bGAULjrAhstuQH2PxVTZdrWivT75J7RY5Tw=
 github.com/hashicorp/vault-plugin-auth-gcp v0.23.1/go.mod h1:7eXqptuyLNtPLdvwia0Bc139bMGlCgYJZqyhKmR4RWE=
-github.com/hashicorp/vault-plugin-auth-jwt v0.26.1 h1:eSXJVECExviE3Zj6mV06cMM47qBZm2GVH5IZUsUDEzE=
-github.com/hashicorp/vault-plugin-auth-jwt v0.26.1/go.mod h1:ob1LGh1ScQuKBU+V0bTWP2fkdr4x0OREoFMb7oIX4R4=
+github.com/hashicorp/vault-plugin-auth-jwt v0.26.3 h1:MsdvAE/rqyUx4gsf31/ebga3wJ+kozosVqaI4Bbugkg=
+github.com/hashicorp/vault-plugin-auth-jwt v0.26.3/go.mod h1:lcmkcwQC9vWOO8BdLBK2/NZsKcXX+JtwsJU7jWhqRDA=
 github.com/hashicorp/vault-plugin-auth-kerberos v0.17.1 h1:eOlMi+w5VTdvMmyP18GPnckybjwFYLna0eXBLWsb+BQ=
 github.com/hashicorp/vault-plugin-auth-kerberos v0.17.1/go.mod h1:FET3h3/cvfy+H0PbQdMVgDZnBlgSFVhJbovrRRU+9Ic=
 github.com/hashicorp/vault-plugin-auth-kubernetes v0.24.1 h1:EBSaP3mKs0wffpJgmPWI+dU++8CLrC3uexdvmCON7/Y=