Security backport to 1.22

go.mod

@@ -1,6 +1,8 @@
 module code.gitea.io/gitea
 
-go 1.22
+go 1.23.0
+
+toolchain go1.24.7
 
 require (
 	code.gitea.io/actions-proto-go v0.4.0
@@ -52,7 +54,7 @@ require (
 	github.com/gobwas/glob v0.2.3
 	github.com/gogs/chardet v0.0.0-20211120154057-b7413eaefb8f
 	github.com/gogs/go-gogs-client v0.0.0-20210131175652-1d7215cd8d85
-	github.com/golang-jwt/jwt/v5 v5.2.1
+	github.com/golang-jwt/jwt/v5 v5.2.2
 	github.com/google/go-github/v57 v57.0.0
 	github.com/google/pprof v0.0.0-20240227163752-401108e1b7e7
 	github.com/google/uuid v1.6.0
@@ -87,7 +89,7 @@ require (
 	github.com/pquerna/otp v1.4.0
 	github.com/prometheus/client_golang v1.19.0
 	github.com/quasoft/websspi v1.1.2
-	github.com/redis/go-redis/v9 v9.6.0
+	github.com/redis/go-redis/v9 v9.7.3
 	github.com/robfig/cron/v3 v3.0.1
 	github.com/santhosh-tekuri/jsonschema/v5 v5.3.1
 	github.com/sassoftware/go-rpmutils v0.3.0
@@ -96,20 +98,20 @@ require (
 	github.com/stretchr/testify v1.9.0
 	github.com/syndtr/goleveldb v1.0.0
 	github.com/tstranex/u2f v1.0.0
-	github.com/ulikunitz/xz v0.5.11
+	github.com/ulikunitz/xz v0.5.15
 	github.com/urfave/cli/v2 v2.27.2
 	github.com/xanzy/go-gitlab v0.100.0
 	github.com/xeipuuv/gojsonschema v1.2.0
 	github.com/yohcop/openid-go v1.0.1
 	github.com/yuin/goldmark v1.7.0
 	github.com/yuin/goldmark-highlighting/v2 v2.0.0-20230729083705-37449abec8cc
 	github.com/yuin/goldmark-meta v1.1.0
-	golang.org/x/crypto v0.31.0
+	golang.org/x/crypto v0.36.0
 	golang.org/x/image v0.18.0
-	golang.org/x/net v0.33.0
-	golang.org/x/oauth2 v0.21.0
-	golang.org/x/sys v0.28.0
-	golang.org/x/text v0.21.0
+	golang.org/x/net v0.38.0
+	golang.org/x/oauth2 v0.27.0
+	golang.org/x/sys v0.31.0
+	golang.org/x/text v0.23.0
 	golang.org/x/tools v0.24.0
 	google.golang.org/grpc v1.62.1
 	google.golang.org/protobuf v1.33.0
@@ -199,7 +201,7 @@ require (
 	github.com/go-openapi/validate v0.24.0 // indirect
 	github.com/go-webauthn/x v0.1.9 // indirect
 	github.com/goccy/go-json v0.10.3 // indirect
-	github.com/golang-jwt/jwt/v4 v4.5.0 // indirect
+	github.com/golang-jwt/jwt/v4 v4.5.2 // indirect
 	github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9 // indirect
 	github.com/golang-sql/sqlexp v0.1.0 // indirect
 	github.com/golang/geo v0.0.0-20230421003525-6adc56603217 // indirect
@@ -291,7 +293,7 @@ require (
 	go.uber.org/zap v1.27.0 // indirect
 	golang.org/x/exp v0.0.0-20240314144324-c7f7c6466f7f // indirect
 	golang.org/x/mod v0.20.0 // indirect
-	golang.org/x/sync v0.10.0 // indirect
+	golang.org/x/sync v0.12.0 // indirect
 	golang.org/x/time v0.5.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240314234333-6e1732d8331c // indirect
 	gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc // indirect

go.sum

@@ -362,8 +362,12 @@ github.com/gogs/go-gogs-client v0.0.0-20210131175652-1d7215cd8d85 h1:UjoPNDAQ5JP
 github.com/gogs/go-gogs-client v0.0.0-20210131175652-1d7215cd8d85/go.mod h1:fR6z1Ie6rtF7kl/vBYMfgD5/G5B1blui7z426/sj2DU=
 github.com/golang-jwt/jwt/v4 v4.5.0 h1:7cYmW1XlMY7h7ii7UhUyChSgS5wUJEnm9uZVTGqOWzg=
 github.com/golang-jwt/jwt/v4 v4.5.0/go.mod h1:m21LjoU+eqJr34lmDMbreY2eSTRJ1cv77w39/MY0Ch0=
+github.com/golang-jwt/jwt/v4 v4.5.2 h1:YtQM7lnr8iZ+j5q71MGKkNw9Mn7AjHM68uc9g5fXeUI=
+github.com/golang-jwt/jwt/v4 v4.5.2/go.mod h1:m21LjoU+eqJr34lmDMbreY2eSTRJ1cv77w39/MY0Ch0=
 github.com/golang-jwt/jwt/v5 v5.2.1 h1:OuVbFODueb089Lh128TAcimifWaLhJwVflnrgM17wHk=
 github.com/golang-jwt/jwt/v5 v5.2.1/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
+github.com/golang-jwt/jwt/v5 v5.2.2 h1:Rl4B7itRWVtYIHFrSNd7vhTiz9UpLdi6gZhZ3wEeDy8=
+github.com/golang-jwt/jwt/v5 v5.2.2/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
 github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9 h1:au07oEsX2xN0ktxqI+Sida1w446QrXBRJ0nee3SNZlA=
 github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0=
 github.com/golang-sql/sqlexp v0.1.0 h1:ZCD6MBpcuOVfGVqsEmY5/4FtYiKz6tSyUv9LPEDei6A=
@@ -648,6 +652,8 @@ github.com/quasoft/websspi v1.1.2/go.mod h1:HmVdl939dQ0WIXZhyik+ARdI03M6bQzaSEKc
 github.com/rcrowley/go-metrics v0.0.0-20190826022208-cac0b30c2563/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/redis/go-redis/v9 v9.6.0 h1:NLck+Rab3AOTHw21CGRpvQpgTrAU4sgdCswqGtlhGRA=
 github.com/redis/go-redis/v9 v9.6.0/go.mod h1:hdY0cQFCN4fnSYT6TkisLufl/4W5UIXyv0b/CLO2V2M=
+github.com/redis/go-redis/v9 v9.7.3 h1:YpPyAayJV+XErNsatSElgRZZVCwXX9QzkKYNvO7x0wM=
+github.com/redis/go-redis/v9 v9.7.3/go.mod h1:bGUrSggJ9X9GUmZpZNEOQKaANxSGgOEBRltRTZHSvrA=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 h1:OdAsTTz6OkFY5QxjkYwrChwuRruF69c169dPK26NUlk=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
 github.com/rhysd/actionlint v1.6.27 h1:xxwe8YmveBcC8lydW6GoHMGmB6H/MTqUU60F2p10wjw=
@@ -749,6 +755,8 @@ github.com/ulikunitz/xz v0.5.8/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oW
 github.com/ulikunitz/xz v0.5.9/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oWt/14=
 github.com/ulikunitz/xz v0.5.11 h1:kpFauv27b6ynzBNT/Xy+1k+fK4WswhN/6PN5WhFAGw8=
 github.com/ulikunitz/xz v0.5.11/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oWt/14=
+github.com/ulikunitz/xz v0.5.15 h1:9DNdB5s+SgV3bQ2ApL10xRc35ck0DuIX/isZvIk+ubY=
+github.com/ulikunitz/xz v0.5.15/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oWt/14=
 github.com/unknwon/com v1.0.1 h1:3d1LTxD+Lnf3soQiD4Cp/0BRB+Rsa/+RTvz8GMMzIXs=
 github.com/unknwon/com v1.0.1/go.mod h1:tOOxU81rwgoCLoOVVPHb6T/wt8HZygqH5id+GNnlCXM=
 github.com/urfave/cli/v2 v2.27.2 h1:6e0H+AkS+zDckwPCUrZkKX38mRaau4nL2uipkJpbkcI=
@@ -837,6 +845,10 @@ golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliY
 golang.org/x/crypto v0.17.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
 golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
 golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/crypto v0.35.0 h1:b15kiHdrGCHrP6LvwaQ3c03kgNhhiMgvlhxHQhmg2Xs=
+golang.org/x/crypto v0.35.0/go.mod h1:dy7dXNW32cAb/6/PRuTNsix8T+vJAqvuIy5Bli/x0YQ=
+golang.org/x/crypto v0.36.0 h1:AnAEvhDddvBdpY+uR+MyHmuZzzNqXSe/GvuDeob5L34=
+golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc=
 golang.org/x/exp v0.0.0-20240314144324-c7f7c6466f7f h1:3CW0unweImhOzd5FmYuRsD4Y4oQFKZIjAnKbjV4WIrw=
 golang.org/x/exp v0.0.0-20240314144324-c7f7c6466f7f/go.mod h1:CxmFvTBINI24O/j8iY7H1xHzx2i4OsyguNBmN/uPtqc=
 golang.org/x/image v0.18.0 h1:jGzIakQa/ZXI1I0Fxvaa9W7yP25TqT6cHIHn+6CqvSQ=
@@ -868,8 +880,12 @@ golang.org/x/net v0.9.0/go.mod h1:d48xBJpPfHeWQsugry2m+kC02ZBRGRgulfHnEXEuWns=
 golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/net v0.33.0 h1:74SYHlV8BIgHIFC/LrYkOGIwL19eTYXQ5wc6TBuO36I=
 golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
+golang.org/x/net v0.38.0 h1:vRMAPTMaeGqVhG5QyLJHqNDwecKTomGeqbnfZyKlBI8=
+golang.org/x/net v0.38.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
 golang.org/x/oauth2 v0.21.0 h1:tsimM75w1tF/uws5rbeHzIWxEqElMehnc+iW793zsZs=
 golang.org/x/oauth2 v0.21.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
+golang.org/x/oauth2 v0.27.0 h1:da9Vo7/tDv5RH/7nZDz1eMGS/q1Vv1N/7FCrBhI9I3M=
+golang.org/x/oauth2 v0.27.0/go.mod h1:onh5ek6nERTohokkhCD/y2cV4Do3fxFHFuAejCkRWT8=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -880,6 +896,10 @@ golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.10.0 h1:3NQrjDixjgGwUOCaF8w2+VYHv0Ve/vGYSbdkTa98gmQ=
 golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sync v0.11.0 h1:GGz8+XQP4FvTTrjZPzNKTMFtSXH80RAzG+5ghFPgK9w=
+golang.org/x/sync v0.11.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sync v0.12.0 h1:MHc5BpPuC30uJk597Ri8TV3CNZcTLu6B6z4lJy+g6Jw=
+golang.org/x/sync v0.12.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181221143128-b4a75ba826a6/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -917,6 +937,10 @@ golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
 golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
+golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
+golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
@@ -928,6 +952,8 @@ golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
 golang.org/x/term v0.15.0/go.mod h1:BDl952bC7+uMoWR75FIrCDx79TPU9oHkTZ9yRbYOrX0=
 golang.org/x/term v0.27.0 h1:WP60Sv1nlK1T6SupCHbXzSaN0b9wUmsPoRS9b61A23Q=
 golang.org/x/term v0.27.0/go.mod h1:iMsnZpn0cago0GOrHO2+Y7u7JPn5AylBrcoWkElMTSM=
+golang.org/x/term v0.29.0 h1:L6pJp37ocefwRRtYPKSWOWzOtWSxVajvz2ldH/xi3iU=
+golang.org/x/term v0.30.0 h1:PQ39fJZ+mfadBm0y5WlL4vlM7Sx1Hgf13sMIY2+QS9Y=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -940,6 +966,10 @@ golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
 golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
+golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
+golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
+golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
+golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
 golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
 golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

routers/api/v1/repo/issue_attachment.go

@@ -12,7 +12,7 @@ import (
 	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/web"
-	"code.gitea.io/gitea/services/attachment"
+	attachment_service "code.gitea.io/gitea/services/attachment"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/context/upload"
 	"code.gitea.io/gitea/services/convert"
@@ -181,7 +181,7 @@ func CreateIssueAttachment(ctx *context.APIContext) {
 		filename = query
 	}
 
-	attachment, err := attachment.UploadAttachment(ctx, file, setting.Attachment.AllowedTypes, header.Size, &repo_model.Attachment{
+	attachment, err := attachment_service.UploadAttachment(ctx, file, setting.Attachment.AllowedTypes, header.Size, &repo_model.Attachment{
 		Name:       filename,
 		UploaderID: ctx.Doer.ID,
 		RepoID:     ctx.Repo.Repository.ID,
@@ -247,6 +247,8 @@ func EditIssueAttachment(ctx *context.APIContext) {
 	//     "$ref": "#/responses/Attachment"
 	//   "404":
 	//     "$ref": "#/responses/error"
+	//   "422":
+	//     "$ref": "#/responses/validationError"
 	//   "423":
 	//     "$ref": "#/responses/repoArchivedError"
 
@@ -261,8 +263,13 @@ func EditIssueAttachment(ctx *context.APIContext) {
 		attachment.Name = form.Name
 	}
 
-	if err := repo_model.UpdateAttachment(ctx, attachment); err != nil {
+	if err := attachment_service.UpdateAttachment(ctx, setting.Attachment.AllowedTypes, attachment); err != nil {
+		if upload.IsErrFileTypeForbidden(err) {
+			ctx.Error(http.StatusUnprocessableEntity, "", err)
+			return
+		}
 		ctx.Error(http.StatusInternalServerError, "UpdateAttachment", err)
+		return
 	}
 
 	ctx.JSON(http.StatusCreated, convert.ToAPIAttachment(ctx.Repo.Repository, attachment))

routers/api/v1/repo/issue_comment_attachment.go

@@ -14,7 +14,7 @@ import (
 	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/web"
-	"code.gitea.io/gitea/services/attachment"
+	attachment_service "code.gitea.io/gitea/services/attachment"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/context/upload"
 	"code.gitea.io/gitea/services/convert"
@@ -189,7 +189,7 @@ func CreateIssueCommentAttachment(ctx *context.APIContext) {
 		filename = query
 	}
 
-	attachment, err := attachment.UploadAttachment(ctx, file, setting.Attachment.AllowedTypes, header.Size, &repo_model.Attachment{
+	attachment, err := attachment_service.UploadAttachment(ctx, file, setting.Attachment.AllowedTypes, header.Size, &repo_model.Attachment{
 		Name:       filename,
 		UploaderID: ctx.Doer.ID,
 		RepoID:     ctx.Repo.Repository.ID,
@@ -263,6 +263,8 @@ func EditIssueCommentAttachment(ctx *context.APIContext) {
 	//     "$ref": "#/responses/Attachment"
 	//   "404":
 	//     "$ref": "#/responses/error"
+	//   "422":
+	//     "$ref": "#/responses/validationError"
 	//   "423":
 	//     "$ref": "#/responses/repoArchivedError"
 	attach := getIssueCommentAttachmentSafeWrite(ctx)
@@ -275,8 +277,13 @@ func EditIssueCommentAttachment(ctx *context.APIContext) {
 		attach.Name = form.Name
 	}
 
-	if err := repo_model.UpdateAttachment(ctx, attach); err != nil {
+	if err := attachment_service.UpdateAttachment(ctx, setting.Attachment.AllowedTypes, attach); err != nil {
+		if upload.IsErrFileTypeForbidden(err) {
+			ctx.Error(http.StatusUnprocessableEntity, "", err)
+			return
+		}
 		ctx.Error(http.StatusInternalServerError, "UpdateAttachment", attach)
+		return
 	}
 	ctx.JSON(http.StatusCreated, convert.ToAPIAttachment(ctx.Repo.Repository, attach))
 }

routers/api/v1/repo/release_attachment.go

@@ -13,7 +13,7 @@ import (
 	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/web"
-	"code.gitea.io/gitea/services/attachment"
+	attachment_service "code.gitea.io/gitea/services/attachment"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/context/upload"
 	"code.gitea.io/gitea/services/convert"
@@ -234,7 +234,7 @@ func CreateReleaseAttachment(ctx *context.APIContext) {
 	}
 
 	// Create a new attachment and save the file
-	attach, err := attachment.UploadAttachment(ctx, content, setting.Repository.Release.AllowedTypes, size, &repo_model.Attachment{
+	attach, err := attachment_service.UploadAttachment(ctx, content, setting.Repository.Release.AllowedTypes, size, &repo_model.Attachment{
 		Name:       filename,
 		UploaderID: ctx.Doer.ID,
 		RepoID:     ctx.Repo.Repository.ID,
@@ -291,6 +291,8 @@ func EditReleaseAttachment(ctx *context.APIContext) {
 	// responses:
 	//   "201":
 	//     "$ref": "#/responses/Attachment"
+	//   "422":
+	//     "$ref": "#/responses/validationError"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
 
@@ -322,8 +324,13 @@ func EditReleaseAttachment(ctx *context.APIContext) {
 		attach.Name = form.Name
 	}
 
-	if err := repo_model.UpdateAttachment(ctx, attach); err != nil {
+	if err := attachment_service.UpdateAttachment(ctx, setting.Repository.Release.AllowedTypes, attach); err != nil {
+		if upload.IsErrFileTypeForbidden(err) {
+			ctx.Error(http.StatusUnprocessableEntity, "", err)
+			return
+		}
 		ctx.Error(http.StatusInternalServerError, "UpdateAttachment", attach)
+		return
 	}
 	ctx.JSON(http.StatusCreated, convert.ToAPIAttachment(ctx.Repo.Repository, attach))
 }

routers/private/serv.go

@@ -81,6 +81,7 @@ func ServCommand(ctx *context.PrivateContext) {
 	ownerName := ctx.Params(":owner")
 	repoName := ctx.Params(":repo")
 	mode := perm.AccessMode(ctx.FormInt("mode"))
+	verb := ctx.FormString("verb")
 
 	// Set the basic parts of the results to return
 	results := private.ServCommandResults{
@@ -296,8 +297,11 @@ func ServCommand(ctx *context.PrivateContext) {
 				return
 			}
 		} else {
-			// Because of the special ref "refs/for" we will need to delay write permission check
-			if git.DefaultFeatures().SupportProcReceive && unitType == unit.TypeCode {
+			// Because of the special ref "refs/for" (AGit) we will need to delay write permission check,
+			// AGit flow needs to write its own ref when the doer has "reader" permission (allowing to create PR).
+			// The real permission check is done in HookPreReceive (routers/private/hook_pre_receive.go).
+			// Here it should relax the permission check for "git push (git-receive-pack)", but not for others like LFS operations.
+			if git.DefaultFeatures().SupportProcReceive && unitType == unit.TypeCode && verb == "git-receive-pack" {
 				mode = perm.AccessModeRead
 			}
 

services/attachment/attachment.go

@@ -50,3 +50,12 @@ func UploadAttachment(ctx context.Context, file io.Reader, allowedTypes string,
 
 	return NewAttachment(ctx, attach, io.MultiReader(bytes.NewReader(buf), file), fileSize)
 }
+
+// UpdateAttachment updates an attachment, verifying that its name is among the allowed types.
+func UpdateAttachment(ctx context.Context, allowedTypes string, attach *repo_model.Attachment) error {
+	if err := upload.Verify(nil, attach.Name, allowedTypes); err != nil {
+		return err
+	}
+
+	return repo_model.UpdateAttachment(ctx, attach)
+}

services/context/upload/upload.go

@@ -28,12 +28,13 @@ func IsErrFileTypeForbidden(err error) bool {
 }
 
 func (err ErrFileTypeForbidden) Error() string {
-	return "This file extension or type is not allowed to be uploaded."
+	return "This file cannot be uploaded or modified due to a forbidden file extension or type."
 }
 
 var wildcardTypeRe = regexp.MustCompile(`^[a-z]+/\*$`)
 
-// Verify validates whether a file is allowed to be uploaded.
+// Verify validates whether a file is allowed to be uploaded. If buf is empty, it will just check if the file
+// has an allowed file extension.
 func Verify(buf []byte, fileName, allowedTypesStr string) error {
 	allowedTypesStr = strings.ReplaceAll(allowedTypesStr, "|", ",") // compat for old config format
 
@@ -56,21 +57,31 @@ func Verify(buf []byte, fileName, allowedTypesStr string) error {
 		return ErrFileTypeForbidden{Type: fullMimeType}
 	}
 	extension := strings.ToLower(path.Ext(fileName))
+	isBufEmpty := len(buf) <= 1
 
 	// https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file#Unique_file_type_specifiers
 	for _, allowEntry := range allowedTypes {
 		if allowEntry == "*/*" {
 			return nil // everything allowed
-		} else if strings.HasPrefix(allowEntry, ".") && allowEntry == extension {
+		}
+		if strings.HasPrefix(allowEntry, ".") && allowEntry == extension {
 			return nil // extension is allowed
-		} else if mimeType == allowEntry {
+		}
+		if isBufEmpty {
+			continue // skip mime type checks if buffer is empty
+		}
+		if mimeType == allowEntry {
 			return nil // mime type is allowed
-		} else if wildcardTypeRe.MatchString(allowEntry) && strings.HasPrefix(mimeType, allowEntry[:len(allowEntry)-1]) {
+		}
+		if wildcardTypeRe.MatchString(allowEntry) && strings.HasPrefix(mimeType, allowEntry[:len(allowEntry)-1]) {
 			return nil // wildcard match, e.g. image/*
 		}
 	}
 
-	log.Info("Attachment with type %s blocked from upload", fullMimeType)
+	if !isBufEmpty {
+		log.Info("Attachment with type %s blocked from upload", fullMimeType)
+	}
+
 	return ErrFileTypeForbidden{Type: fullMimeType}
 }