diff --git a/go.mod b/go.mod
index 856441f660..015dd5254b 100644
--- a/go.mod
+++ b/go.mod
@@ -57,7 +57,7 @@ require (
 	github.com/miekg/dns v1.1.66
 	github.com/mistifyio/go-zfs/v3 v3.1.0
 	github.com/mitchellh/copystructure v1.2.0
-	github.com/moby/buildkit v0.26.2
+	github.com/moby/buildkit v0.26.3
 	github.com/moby/docker-image-spec v1.3.1
 	github.com/moby/go-archive v0.1.0
 	github.com/moby/ipvs v1.1.0
diff --git a/go.sum b/go.sum
index 8cc5f40b7d..02eb7dbf2f 100644
--- a/go.sum
+++ b/go.sum
@@ -421,8 +421,8 @@ github.com/mitchellh/mapstructure v0.0.0-20160808181253-ca63d7c062ee/go.mod h1:F
 github.com/mitchellh/mapstructure v0.0.0-20170523030023-d0303fe80992/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/mitchellh/reflectwalk v1.0.2 h1:G2LzWKi524PWgd3mLHV8Y5k7s6XUvT0Gef6zxSIeXaQ=
 github.com/mitchellh/reflectwalk v1.0.2/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw=
-github.com/moby/buildkit v0.26.2 h1:EIh5j0gzRsCZmQzvgNNWzSDbuKqwUIiBH7ssqLv8RU8=
-github.com/moby/buildkit v0.26.2/go.mod h1:ylDa7IqzVJgLdi/wO7H1qLREFQpmhFbw2fbn4yoTw40=
+github.com/moby/buildkit v0.26.3 h1:D+ruZVAk/3ipRq5XRxBH9/DIFpRjSlTtMbghT5gQP9g=
+github.com/moby/buildkit v0.26.3/go.mod h1:4T4wJzQS4kYWIfFRjsbJry4QoxDBjK+UGOEOs1izL7w=
 github.com/moby/docker-image-spec v1.3.1 h1:jMKff3w6PgbfSa69GfNg+zN/XLhfXJGnEx3Nl2EsFP0=
 github.com/moby/docker-image-spec v1.3.1/go.mod h1:eKmb5VW8vQEh/BAr2yvVNvuiJuY6UIocYsFu/DxxRpo=
 github.com/moby/go-archive v0.1.0 h1:Kk/5rdW/g+H8NHdJW2gsXyZ7UnzvJNOy6VKJqueWdcQ=
diff --git a/vendor/github.com/moby/buildkit/frontend/gateway/gateway.go b/vendor/github.com/moby/buildkit/frontend/gateway/gateway.go
index e35adab1f1..a27307a000 100644
--- a/vendor/github.com/moby/buildkit/frontend/gateway/gateway.go
+++ b/vendor/github.com/moby/buildkit/frontend/gateway/gateway.go
@@ -653,43 +653,7 @@ func (lbf *llbBridgeForwarder) ResolveSourceMeta(ctx context.Context, req *pb.Re
 	if err != nil {
 		return nil, err
 	}
-
-	r := &pb.ResolveSourceMetaResponse{
-		Source: resp.Op,
-	}
-
-	if resp.Image != nil {
-		r.Image = &pb.ResolveSourceImageResponse{
-			Digest: string(resp.Image.Digest),
-			Config: resp.Image.Config,
-		}
-		if resp.Image.AttestationChain != nil {
-			r.Image.AttestationChain = toPBAttestationChain(resp.Image.AttestationChain)
-		}
-	}
-	if resp.Git != nil {
-		r.Git = &pb.ResolveSourceGitResponse{
-			Checksum:       resp.Git.Checksum,
-			Ref:            resp.Git.Ref,
-			CommitChecksum: resp.Git.CommitChecksum,
-			CommitObject:   resp.Git.CommitObject,
-			TagObject:      resp.Git.TagObject,
-		}
-	}
-	if resp.HTTP != nil {
-		var lastModified *timestamp.Timestamp
-		if resp.HTTP.LastModified != nil {
-			lastModified = &timestamp.Timestamp{
-				Seconds: resp.HTTP.LastModified.Unix(),
-			}
-		}
-		r.HTTP = &pb.ResolveSourceHTTPResponse{
-			Checksum:     resp.HTTP.Digest.String(),
-			Filename:     resp.HTTP.Filename,
-			LastModified: lastModified,
-		}
-	}
-	return r, nil
+	return ToPBResolveSourceMetaResponse(resp), nil
 }
 
 func (lbf *llbBridgeForwarder) ResolveImageConfig(ctx context.Context, req *pb.ResolveImageConfigRequest) (*pb.ResolveImageConfigResponse, error) {
@@ -1705,6 +1669,45 @@ func getCaps(label string) map[string]struct{} {
 	return out
 }
 
+func ToPBResolveSourceMetaResponse(in *sourceresolver.MetaResponse) *pb.ResolveSourceMetaResponse {
+	r := &pb.ResolveSourceMetaResponse{
+		Source: in.Op,
+	}
+
+	if in.Image != nil {
+		r.Image = &pb.ResolveSourceImageResponse{
+			Digest: string(in.Image.Digest),
+			Config: in.Image.Config,
+		}
+		if in.Image.AttestationChain != nil {
+			r.Image.AttestationChain = toPBAttestationChain(in.Image.AttestationChain)
+		}
+	}
+	if in.Git != nil {
+		r.Git = &pb.ResolveSourceGitResponse{
+			Checksum:       in.Git.Checksum,
+			Ref:            in.Git.Ref,
+			CommitChecksum: in.Git.CommitChecksum,
+			CommitObject:   in.Git.CommitObject,
+			TagObject:      in.Git.TagObject,
+		}
+	}
+	if in.HTTP != nil {
+		var lastModified *timestamp.Timestamp
+		if in.HTTP.LastModified != nil {
+			lastModified = &timestamp.Timestamp{
+				Seconds: in.HTTP.LastModified.Unix(),
+			}
+		}
+		r.HTTP = &pb.ResolveSourceHTTPResponse{
+			Checksum:     in.HTTP.Digest.String(),
+			Filename:     in.HTTP.Filename,
+			LastModified: lastModified,
+		}
+	}
+	return r
+}
+
 func toPBAttestationChain(ac *sourceresolver.AttestationChain) *pb.AttestationChain {
 	if ac == nil {
 		return nil
diff --git a/vendor/github.com/moby/buildkit/solver/llbsolver/policy.go b/vendor/github.com/moby/buildkit/solver/llbsolver/policy.go
index 867630777e..0beb917a77 100644
--- a/vendor/github.com/moby/buildkit/solver/llbsolver/policy.go
+++ b/vendor/github.com/moby/buildkit/solver/llbsolver/policy.go
@@ -5,6 +5,7 @@ import (
 	"strings"
 
 	"github.com/moby/buildkit/client/llb/sourceresolver"
+	"github.com/moby/buildkit/frontend/gateway"
 	gatewaypb "github.com/moby/buildkit/frontend/gateway/pb"
 	"github.com/moby/buildkit/solver/pb"
 	"github.com/moby/buildkit/sourcepolicy"
@@ -88,19 +89,26 @@ func (p *policyEvaluator) Evaluate(ctx context.Context, op *pb.Op) (bool, error)
 					Platform: toOCIPlatform(metareq.Platform),
 				}
 			}
+
+			if metareq.Image != nil {
+				if op.ImageOpt == nil {
+					op.ImageOpt = &sourceresolver.ResolveImageOpt{}
+				}
+				op.ImageOpt.NoConfig = metareq.Image.NoConfig
+				op.ImageOpt.AttestationChain = metareq.Image.AttestationChain
+			}
+
+			if metareq.Git != nil {
+				op.GitOpt = &sourceresolver.ResolveGitOpt{
+					ReturnObject: metareq.Git.ReturnObject,
+				}
+			}
+
 			resp, err := p.resolveSourceMetadata(ctx, metareq.Source, op, false)
 			if err != nil {
 				return false, errors.Wrap(err, "error resolving source metadata from policy request")
 			}
-			req.Source = &gatewaypb.ResolveSourceMetaResponse{
-				Source: resp.Op,
-			}
-			if resp.Image != nil {
-				req.Source.Image = &gatewaypb.ResolveSourceImageResponse{
-					Digest: resp.Image.Digest.String(),
-					Config: resp.Image.Config,
-				}
-			}
+			req.Source = gateway.ToPBResolveSourceMetaResponse(resp)
 			continue
 		}
 
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 12e7ad1549..f1531dca19 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -853,7 +853,7 @@ github.com/mitchellh/hashstructure/v2
 # github.com/mitchellh/reflectwalk v1.0.2
 ## explicit
 github.com/mitchellh/reflectwalk
-# github.com/moby/buildkit v0.26.2
+# github.com/moby/buildkit v0.26.3
 ## explicit; go 1.24.3
 github.com/moby/buildkit/api/services/control
 github.com/moby/buildkit/api/types