fix(go): Do not trim v prefix from versions in Go Mod Analyzer

docs/docs/supply-chain/vex/file.md

@@ -64,7 +64,7 @@ $ cat <<EOF > trivy.vex.cdx
       },
       "affects": [
         {
-          "ref": "urn:cdx:3e671687-395b-41f5-a30f-a58921a69b79/1#pkg:golang/github.com/aws/aws-sdk-go@1.44.234"
+          "ref": "urn:cdx:3e671687-395b-41f5-a30f-a58921a69b79/1#pkg:golang/github.com/aws/aws-sdk-go@v1.44.234"
         }
       ]
     }
@@ -115,7 +115,7 @@ Total: 1 (UNKNOWN: 0, LOW: 1, MEDIUM: 0, HIGH: 0, CRITICAL: 0)
 ┌───────────────────────────┬───────────────┬──────────┬───────────────────┬───────────────┬────────────────────────────────────────────────────────────┐
 │          Library          │ Vulnerability │ Severity │ Installed Version │ Fixed Version │                           Title                            │
 ├───────────────────────────┼───────────────┼──────────┼───────────────────┼───────────────┼────────────────────────────────────────────────────────────┤
-│ github.com/aws/aws-sdk-go │ CVE-2020-8912 │ LOW      │ 1.44.234          │               │ aws-sdk-go: In-band key negotiation issue in AWS S3 Crypto │
+│ github.com/aws/aws-sdk-go │ CVE-2020-8912 │ LOW      │ v1.44.234         │               │ aws-sdk-go: In-band key negotiation issue in AWS S3 Crypto │
 │                           │               │          │                   │               │ SDK for golang...                                          │
 │                           │               │          │                   │               │ https://avd.aquasec.com/nvd/cve-2020-8912                  │
 └───────────────────────────┴───────────────┴──────────┴───────────────────┴───────────────┴────────────────────────────────────────────────────────────┘
@@ -497,9 +497,9 @@ Now, suppose a VEX statement is issued for `Module B` as follows:
     "vulnerability": {"name": "CVE-XXXX-YYYY"},
     "products": [
       {
-        "@id": "pkg:golang/module-b@1.0.0",
+        "@id": "pkg:golang/module-b@v1.0.0",
         "subcomponents": [
-          { "@id": "pkg:golang/module-c@2.0.0" }
+          { "@id": "pkg:golang/module-c@v2.0.0" }
         ]
       }
     ],

integration/testdata/fixtures/vex/file/openvex.json

@@ -11,7 +11,7 @@
         {
           "@id": "pkg:golang/github.com/testdata/testdata",
           "subcomponents": [
-            { "@id": "pkg:golang/github.com/open-policy-agent/opa@0.35.0" }
+            { "@id": "pkg:golang/github.com/open-policy-agent/opa@v0.35.0" }
           ]
         }
       ],

integration/testdata/gomod-skip.json.golden

@@ -26,10 +26,10 @@
           "PkgID": "github.com/docker/[email protected]+incompatible",
           "PkgName": "github.com/docker/distribution",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/github.com/docker/distribution@2.7.1%2Bincompatible",
-            "UID": "de19cd663ca047a8"
+            "PURL": "pkg:golang/github.com/docker/distribution@v2.7.1%2Bincompatible",
+            "UID": "9d949a7b01249e68"
           },
-          "InstalledVersion": "2.7.1+incompatible",
+          "InstalledVersion": "v2.7.1+incompatible",
           "FixedVersion": "v2.8.0",
           "Status": "fixed",
           "Layer": {},
@@ -53,10 +53,10 @@
           "PkgID": "github.com/open-policy-agent/[email protected]",
           "PkgName": "github.com/open-policy-agent/opa",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/github.com/open-policy-agent/opa@0.35.0",
-            "UID": "6b685002e082ffc5"
+            "PURL": "pkg:golang/github.com/open-policy-agent/opa@v0.35.0",
+            "UID": "e89e2b0d8977e2a"
           },
-          "InstalledVersion": "0.35.0",
+          "InstalledVersion": "v0.35.0",
           "FixedVersion": "0.37.0",
           "Status": "fixed",
           "Layer": {},
@@ -100,10 +100,10 @@
           "PkgID": "golang.org/x/[email protected]",
           "PkgName": "golang.org/x/text",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/golang.org/x/text@0.3.6",
-            "UID": "825dc613c0f39d45"
+            "PURL": "pkg:golang/golang.org/x/text@v0.3.6",
+            "UID": "3050088ce9eb2ce4"
           },
-          "InstalledVersion": "0.3.6",
+          "InstalledVersion": "v0.3.6",
           "FixedVersion": "0.3.7",
           "Status": "fixed",
           "Layer": {},
@@ -133,10 +133,10 @@
           "PkgID": "github.com/docker/[email protected]+incompatible",
           "PkgName": "github.com/docker/distribution",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/github.com/docker/distribution@2.7.1%2Bincompatible",
-            "UID": "94376dc37054a7e8"
+            "PURL": "pkg:golang/github.com/docker/distribution@v2.7.1%2Bincompatible",
+            "UID": "2f7f0fa81860b8f1"
           },
-          "InstalledVersion": "2.7.1+incompatible",
+          "InstalledVersion": "v2.7.1+incompatible",
           "FixedVersion": "v2.8.0",
           "Status": "fixed",
           "Layer": {},

integration/testdata/gomod-vex.json.golden

@@ -26,10 +26,10 @@
           "PkgID": "github.com/docker/[email protected]+incompatible",
           "PkgName": "github.com/docker/distribution",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/github.com/docker/distribution@2.7.1%2Bincompatible",
-            "UID": "de19cd663ca047a8"
+            "PURL": "pkg:golang/github.com/docker/distribution@v2.7.1%2Bincompatible",
+            "UID": "9d949a7b01249e68"
           },
-          "InstalledVersion": "2.7.1+incompatible",
+          "InstalledVersion": "v2.7.1+incompatible",
           "FixedVersion": "v2.8.0",
           "Status": "fixed",
           "Layer": {},
@@ -53,10 +53,10 @@
           "PkgID": "golang.org/x/[email protected]",
           "PkgName": "golang.org/x/text",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/golang.org/x/text@0.3.6",
-            "UID": "825dc613c0f39d45"
+            "PURL": "pkg:golang/golang.org/x/text@v0.3.6",
+            "UID": "3050088ce9eb2ce4"
           },
-          "InstalledVersion": "0.3.6",
+          "InstalledVersion": "v0.3.6",
           "FixedVersion": "0.3.7",
           "Status": "fixed",
           "Layer": {},
@@ -86,10 +86,10 @@
           "PkgID": "github.com/docker/[email protected]+incompatible",
           "PkgName": "github.com/docker/distribution",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/github.com/docker/distribution@2.7.1%2Bincompatible",
-            "UID": "94376dc37054a7e8"
+            "PURL": "pkg:golang/github.com/docker/distribution@v2.7.1%2Bincompatible",
+            "UID": "2f7f0fa81860b8f1"
           },
-          "InstalledVersion": "2.7.1+incompatible",
+          "InstalledVersion": "v2.7.1+incompatible",
           "FixedVersion": "v2.8.0",
           "Status": "fixed",
           "Layer": {},
@@ -120,10 +120,10 @@
           "PkgID": "github.com/docker/[email protected]+incompatible",
           "PkgName": "github.com/docker/distribution",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/github.com/docker/distribution@2.7.1%2Bincompatible",
-            "UID": "94306cdcf85fb50a"
+            "PURL": "pkg:golang/github.com/docker/distribution@v2.7.1%2Bincompatible",
+            "UID": "3ad40723ed2fce22"
           },
-          "InstalledVersion": "2.7.1+incompatible",
+          "InstalledVersion": "v2.7.1+incompatible",
           "FixedVersion": "v2.8.0",
           "Status": "fixed",
           "Layer": {},

integration/testdata/gomod.json.golden

@@ -26,10 +26,10 @@
           "PkgID": "github.com/docker/[email protected]+incompatible",
           "PkgName": "github.com/docker/distribution",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/github.com/docker/distribution@2.7.1%2Bincompatible",
-            "UID": "de19cd663ca047a8"
+            "PURL": "pkg:golang/github.com/docker/distribution@v2.7.1%2Bincompatible",
+            "UID": "9d949a7b01249e68"
           },
-          "InstalledVersion": "2.7.1+incompatible",
+          "InstalledVersion": "v2.7.1+incompatible",
           "FixedVersion": "v2.8.0",
           "Status": "fixed",
           "Layer": {},
@@ -53,10 +53,10 @@
           "PkgID": "github.com/open-policy-agent/[email protected]",
           "PkgName": "github.com/open-policy-agent/opa",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/github.com/open-policy-agent/opa@0.35.0",
-            "UID": "6b685002e082ffc5"
+            "PURL": "pkg:golang/github.com/open-policy-agent/opa@v0.35.0",
+            "UID": "e89e2b0d8977e2a"
           },
-          "InstalledVersion": "0.35.0",
+          "InstalledVersion": "v0.35.0",
           "FixedVersion": "0.37.0",
           "Status": "fixed",
           "Layer": {},
@@ -100,10 +100,10 @@
           "PkgID": "golang.org/x/[email protected]",
           "PkgName": "golang.org/x/text",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/golang.org/x/text@0.3.6",
-            "UID": "825dc613c0f39d45"
+            "PURL": "pkg:golang/golang.org/x/text@v0.3.6",
+            "UID": "3050088ce9eb2ce4"
           },
-          "InstalledVersion": "0.3.6",
+          "InstalledVersion": "v0.3.6",
           "FixedVersion": "0.3.7",
           "Status": "fixed",
           "Layer": {},
@@ -133,10 +133,10 @@
           "PkgID": "github.com/docker/[email protected]+incompatible",
           "PkgName": "github.com/docker/distribution",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/github.com/docker/distribution@2.7.1%2Bincompatible",
-            "UID": "94376dc37054a7e8"
+            "PURL": "pkg:golang/github.com/docker/distribution@v2.7.1%2Bincompatible",
+            "UID": "2f7f0fa81860b8f1"
           },
-          "InstalledVersion": "2.7.1+incompatible",
+          "InstalledVersion": "v2.7.1+incompatible",
           "FixedVersion": "v2.8.0",
           "Status": "fixed",
           "Layer": {},
@@ -167,10 +167,10 @@
           "PkgID": "github.com/docker/[email protected]+incompatible",
           "PkgName": "github.com/docker/distribution",
           "PkgIdentifier": {
-            "PURL": "pkg:golang/github.com/docker/distribution@2.7.1%2Bincompatible",
-            "UID": "94306cdcf85fb50a"
+            "PURL": "pkg:golang/github.com/docker/distribution@v2.7.1%2Bincompatible",
+            "UID": "3ad40723ed2fce22"
           },
-          "InstalledVersion": "2.7.1+incompatible",
+          "InstalledVersion": "v2.7.1+incompatible",
           "FixedVersion": "v2.8.0",
           "Status": "fixed",
           "Layer": {},

pkg/dependency/id_test.go

@@ -34,7 +34,7 @@ func TestID(t *testing.T) {
 			args: args{
 				ltype:   types.GoModule,
 				name:    "test",
-				version: "1.0.0",
+				version: "v1.0.0",
 			},
 			want: "[email protected]",
 		},

pkg/dependency/parser/golang/binary/parse.go

@@ -3,6 +3,7 @@ package binary
 import (
 	"cmp"
 	"debug/buildinfo"
+	"fmt"
 	"runtime/debug"
 	"slices"
 	"sort"
@@ -56,6 +57,8 @@ func (p *Parser) Parse(r xio.ReadSeekerAt) ([]ftypes.Package, []ftypes.Dependenc
 	// Ex: "go1.22.3 X:boringcrypto"
 	stdlibVersion := strings.TrimPrefix(info.GoVersion, "go")
 	stdlibVersion, _, _ = strings.Cut(stdlibVersion, " ")
+	// Add the `v` prefix to be consistent with module and dependency versions.
+	stdlibVersion = fmt.Sprintf("v%s", stdlibVersion)
 
 	ldflags := p.ldFlags(info.Settings)
 	pkgs := make(ftypes.Packages, 0, len(info.Deps)+2)

pkg/dependency/parser/golang/binary/parse_test.go

@@ -20,7 +20,7 @@ func TestParse(t *testing.T) {
 		},
 		{
 			Name:         "stdlib",
-			Version:      "1.15.2",
+			Version:      "v1.15.2",
 			Relationship: ftypes.RelationshipDirect,
 		},
 		{
@@ -69,7 +69,7 @@ func TestParse(t *testing.T) {
 				},
 				{
 					Name:         "stdlib",
-					Version:      "1.16.4",
+					Version:      "v1.16.4",
 					Relationship: ftypes.RelationshipDirect,
 				},
 				{
@@ -93,7 +93,7 @@ func TestParse(t *testing.T) {
 				},
 				{
 					Name:         "stdlib",
-					Version:      "1.20.6",
+					Version:      "v1.20.6",
 					Relationship: ftypes.RelationshipDirect,
 				},
 			},
@@ -109,7 +109,7 @@ func TestParse(t *testing.T) {
 				},
 				{
 					Name:         "stdlib",
-					Version:      "1.22.1",
+					Version:      "v1.22.1",
 					Relationship: ftypes.RelationshipDirect,
 				},
 			},
@@ -120,7 +120,7 @@ func TestParse(t *testing.T) {
 			want: []ftypes.Package{
 				{
 					Name:         "stdlib",
-					Version:      "1.22.1",
+					Version:      "v1.22.1",
 					Relationship: ftypes.RelationshipDirect,
 				},
 			},

pkg/dependency/parser/golang/mod/parse.go

@@ -1,6 +1,7 @@
 package mod
 
 import (
+	"fmt"
 	"io"
 	"regexp"
 	"strconv"
@@ -90,21 +91,22 @@ func (p *Parser) Parse(r xio.ReadSeekerAt) ([]ftypes.Package, []ftypes.Dependenc
 	if p.useMinVersion {
 		if toolchainVer := toolchainVersion(modFileParsed.Toolchain, modFileParsed.Go); toolchainVer != "" {
 			pkgs["stdlib"] = ftypes.Package{
-				ID:           packageID("stdlib", toolchainVer),
-				Name:         "stdlib",
-				Version:      toolchainVer,
+				ID:   packageID("stdlib", toolchainVer),
+				Name: "stdlib",
+				// Our versioning library doesn't support canonical (goX.Y.Z) format,
+				// So we need to add `v` prefix for consistency (with module and dependency versions).
+				Version:      fmt.Sprintf("v%s", toolchainVer),
 				Relationship: ftypes.RelationshipDirect, // Considered a direct dependency as the main module depends on the standard packages.
 			}
 		}
 	}
 
 	// Main module
 	if m := modFileParsed.Module; m != nil {
-		ver := strings.TrimPrefix(m.Mod.Version, "v")
 		pkgs[m.Mod.Path] = ftypes.Package{
-			ID:                 packageID(m.Mod.Path, ver),
+			ID:                 packageID(m.Mod.Path, m.Mod.Version),
 			Name:               m.Mod.Path,
-			Version:            ver,
+			Version:            m.Mod.Version,
 			ExternalReferences: p.GetExternalRefs(m.Mod.Path),
 			Relationship:       ftypes.RelationshipRoot,
 		}
@@ -116,11 +118,10 @@ func (p *Parser) Parse(r xio.ReadSeekerAt) ([]ftypes.Package, []ftypes.Dependenc
 		if skipIndirect && require.Indirect {
 			continue
 		}
-		ver := strings.TrimPrefix(require.Mod.Version, "v")
 		pkgs[require.Mod.Path] = ftypes.Package{
-			ID:                 packageID(require.Mod.Path, ver),
+			ID:                 packageID(require.Mod.Path, require.Mod.Version),
 			Name:               require.Mod.Path,
-			Version:            ver,
+			Version:            require.Mod.Version,
 			Relationship:       lo.Ternary(require.Indirect, ftypes.RelationshipIndirect, ftypes.RelationshipDirect),
 			ExternalReferences: p.GetExternalRefs(require.Mod.Path),
 		}
@@ -136,7 +137,7 @@ func (p *Parser) Parse(r xio.ReadSeekerAt) ([]ftypes.Package, []ftypes.Dependenc
 			}
 
 			// If the replace directive has a version on the left side, make sure it matches the version that was imported.
-			if rep.Old.Version != "" && old.Version != rep.Old.Version[1:] {
+			if rep.Old.Version != "" && old.Version != rep.Old.Version {
 				continue
 			}
 
@@ -153,9 +154,9 @@ func (p *Parser) Parse(r xio.ReadSeekerAt) ([]ftypes.Package, []ftypes.Dependenc
 
 			// Add replaced package to package register.
 			pkgs[rep.New.Path] = ftypes.Package{
-				ID:                 packageID(rep.New.Path, rep.New.Version[1:]),
+				ID:                 packageID(rep.New.Path, rep.New.Version),
 				Name:               rep.New.Path,
-				Version:            rep.New.Version[1:],
+				Version:            rep.New.Version,
 				Relationship:       old.Relationship,
 				ExternalReferences: p.GetExternalRefs(rep.New.Path),
 			}