diff --git a/cmd/osbuild-worker/config.go b/cmd/osbuild-worker/config.go
index 9834436e9e..cc38385417 100644
--- a/cmd/osbuild-worker/config.go
+++ b/cmd/osbuild-worker/config.go
@@ -78,6 +78,13 @@ type executorConfig struct {
 	CloudWatchGroup string `toml:"cloudwatch_group"`
 }
 
+type repositoryMTLSConfig struct {
+	BaseURL        string `toml:"baseurl"`
+	CA             string `toml:"ca"`
+	MTLSClientKey  string `toml:"mtls_client_key"`
+	MTLSClientCert string `toml:"mtls_client_cert"`
+}
+
 type workerConfig struct {
 	Composer       *composerConfig             `toml:"composer"`
 	Koji           map[string]kojiServerConfig `toml:"koji"`
@@ -93,7 +100,8 @@ type workerConfig struct {
 	BasePath string `toml:"base_path"`
 	DNFJson  string `toml:"dnf-json"`
 	// default value: &{ Type: host }
-	OSBuildExecutor *executorConfig `toml:"osbuild_executor"`
+	OSBuildExecutor      *executorConfig       `toml:"osbuild_executor"`
+	RepositoryMTLSConfig *repositoryMTLSConfig `toml:"repository_mtls"`
 }
 
 func parseConfig(file string) (*workerConfig, error) {
diff --git a/cmd/osbuild-worker/jobimpl-depsolve.go b/cmd/osbuild-worker/jobimpl-depsolve.go
index 3b3d356c48..e817103645 100644
--- a/cmd/osbuild-worker/jobimpl-depsolve.go
+++ b/cmd/osbuild-worker/jobimpl-depsolve.go
@@ -2,6 +2,8 @@ package main
 
 import (
 	"fmt"
+	"net/url"
+	"strings"
 
 	"github.com/sirupsen/logrus"
 
@@ -11,8 +13,36 @@ import (
 	"github.com/osbuild/osbuild-composer/internal/worker/clienterrors"
 )
 
+// Used by both depsolve and osbuild jobs
+type RepositoryMTLSConfig struct {
+	BaseURL        *url.URL
+	CA             string
+	MTLSClientKey  string
+	MTLSClientCert string
+}
+
+func (rmc *RepositoryMTLSConfig) CompareBaseURL(baseURLStr string) (bool, error) {
+	baseURL, err := url.Parse(baseURLStr)
+	if err != nil {
+		return false, err
+	}
+
+	if baseURL.Scheme != rmc.BaseURL.Scheme {
+		return false, nil
+	}
+	if baseURL.Host != rmc.BaseURL.Host {
+		return false, nil
+	}
+	if !strings.HasPrefix(baseURL.Path, rmc.BaseURL.Path) {
+		return false, nil
+	}
+
+	return true, nil
+}
+
 type DepsolveJobImpl struct {
-	Solver *dnfjson.BaseSolver
+	Solver               *dnfjson.BaseSolver
+	RepositoryMTLSConfig *RepositoryMTLSConfig
 }
 
 // depsolve each package set in the pacakgeSets map.  The repositories defined
@@ -43,6 +73,28 @@ func (impl *DepsolveJobImpl) Run(job worker.Job) error {
 	}
 
 	var result worker.DepsolveJobResult
+
+	if impl.RepositoryMTLSConfig != nil {
+		for _, pkgsets := range args.PackageSets {
+			for _, pkgset := range pkgsets {
+				for _, repo := range pkgset.Repositories {
+					for _, baseurlstr := range repo.BaseURLs {
+						match, err := impl.RepositoryMTLSConfig.CompareBaseURL(baseurlstr)
+						if err != nil {
+							result.JobError = clienterrors.WorkerClientError(clienterrors.ErrorInvalidRepositoryURL, "Repository URL is malformed", err)
+							return err
+						}
+						if match {
+							repo.SSLCACert = impl.RepositoryMTLSConfig.CA
+							repo.SSLClientKey = impl.RepositoryMTLSConfig.MTLSClientKey
+							repo.SSLClientCert = impl.RepositoryMTLSConfig.MTLSClientCert
+						}
+					}
+				}
+			}
+		}
+	}
+
 	result.PackageSpecs, err = impl.depsolve(args.PackageSets, args.ModulePlatformID, args.Arch, args.Releasever)
 	if err != nil {
 		switch e := err.(type) {
diff --git a/cmd/osbuild-worker/jobimpl-osbuild.go b/cmd/osbuild-worker/jobimpl-osbuild.go
index b8207dd748..8cff0e1d3c 100644
--- a/cmd/osbuild-worker/jobimpl-osbuild.go
+++ b/cmd/osbuild-worker/jobimpl-osbuild.go
@@ -84,18 +84,19 @@ type ExecutorConfiguration struct {
 }
 
 type OSBuildJobImpl struct {
-	Store            string
-	Output           string
-	OSBuildExecutor  ExecutorConfiguration
-	KojiServers      map[string]kojiServer
-	GCPConfig        GCPConfiguration
-	AzureConfig      AzureConfiguration
-	OCIConfig        OCIConfiguration
-	AWSCreds         string
-	AWSBucket        string
-	S3Config         S3Configuration
-	ContainersConfig ContainersConfiguration
-	PulpConfig       PulpConfiguration
+	Store                string
+	Output               string
+	OSBuildExecutor      ExecutorConfiguration
+	KojiServers          map[string]kojiServer
+	GCPConfig            GCPConfiguration
+	AzureConfig          AzureConfiguration
+	OCIConfig            OCIConfiguration
+	AWSCreds             string
+	AWSBucket            string
+	S3Config             S3Configuration
+	ContainersConfig     ContainersConfiguration
+	PulpConfig           PulpConfiguration
+	RepositoryMTLSConfig *RepositoryMTLSConfig
 }
 
 // Returns an *awscloud.AWS object with the credentials of the request. If they
@@ -484,6 +485,14 @@ func (impl *OSBuildJobImpl) Run(job worker.Job) error {
 		}
 	}
 
+	if impl.RepositoryMTLSConfig != nil {
+		if impl.RepositoryMTLSConfig.CA != "" {
+			extraEnv = append(extraEnv, fmt.Sprintf("OSBUILD_SOURCES_CURL_SSL_CLIENT_CERT=%s", impl.RepositoryMTLSConfig.CA))
+		}
+		extraEnv = append(extraEnv, fmt.Sprintf("OSBUILD_SOURCES_CURL_SSL_CLIENT_KEY=%s", impl.RepositoryMTLSConfig.MTLSClientKey))
+		extraEnv = append(extraEnv, fmt.Sprintf("OSBUILD_SOURCES_CURL_SSL_CLIENT_CERT=%s", impl.RepositoryMTLSConfig.MTLSClientCert))
+	}
+
 	// Run osbuild and handle two kinds of errors
 	var executor osbuildexecutor.Executor
 	switch impl.OSBuildExecutor.Type {
diff --git a/cmd/osbuild-worker/main.go b/cmd/osbuild-worker/main.go
index 27dd700f35..2ae3b3fd27 100644
--- a/cmd/osbuild-worker/main.go
+++ b/cmd/osbuild-worker/main.go
@@ -7,6 +7,7 @@ import (
 	"errors"
 	"flag"
 	"fmt"
+	"net/url"
 	"os"
 	"path"
 	"strings"
@@ -433,6 +434,20 @@ func main() {
 		pulpAddress = config.Pulp.ServerURL
 	}
 
+	var repositoryMTLSConfig *RepositoryMTLSConfig
+	if config.RepositoryMTLSConfig != nil {
+		baseURL, err := url.Parse(config.RepositoryMTLSConfig.BaseURL)
+		if err != nil {
+			logrus.Fatalf("Repository MTL baseurl not valid: %v", err)
+		}
+		repositoryMTLSConfig = &RepositoryMTLSConfig{
+			BaseURL:        baseURL,
+			CA:             config.RepositoryMTLSConfig.CA,
+			MTLSClientKey:  config.RepositoryMTLSConfig.MTLSClientKey,
+			MTLSClientCert: config.RepositoryMTLSConfig.MTLSClientCert,
+		}
+	}
+
 	// depsolve jobs can be done during other jobs
 	depsolveCtx, depsolveCtxCancel := context.WithCancel(context.Background())
 	solver := dnfjson.NewBaseSolver(rpmmd_cache)
@@ -443,7 +458,8 @@ func main() {
 	go func() {
 		jobImpls := map[string]JobImplementation{
 			worker.JobTypeDepsolve: &DepsolveJobImpl{
-				Solver: solver,
+				Solver:               solver,
+				RepositoryMTLSConfig: repositoryMTLSConfig,
 			},
 		}
 		acceptedJobTypes := []string{}
@@ -504,6 +520,7 @@ func main() {
 				CredsFilePath: pulpCredsFilePath,
 				ServerAddress: pulpAddress,
 			},
+			RepositoryMTLSConfig: repositoryMTLSConfig,
 		},
 		worker.JobTypeKojiInit: &KojiInitJobImpl{
 			KojiServers: kojiServers,
diff --git a/internal/worker/clienterrors/errors.go b/internal/worker/clienterrors/errors.go
index 2692cdd31a..e575c57412 100644
--- a/internal/worker/clienterrors/errors.go
+++ b/internal/worker/clienterrors/errors.go
@@ -43,6 +43,7 @@ const (
 	ErrorRemoteFileResolution ClientErrorCode = 36
 	ErrorJobPanicked          ClientErrorCode = 37
 	ErrorGeneratingSignedURL  ClientErrorCode = 38
+	ErrorInvalidRepositoryURL ClientErrorCode = 39
 )
 
 type ClientErrorCode int