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fix: various security fixes (#38406)

Browse Source 
Addresses a batch of privately reported security issues, grouped by
area:

- **SSRF** - migration PR-patch/asset fetches, OAuth2 avatar & OpenID
discovery, pull-mirror URL re-validation, and the outbound proxy path.
- **Access-token scope** - prevent scope escalation on token creation;
keep public-only tokens confined (feeds, packages, Actions listings,
star/watch lists, limited/private owners).
- **Access control / disclosure** - go-get default-branch leak, webhook
authorization-header leak, watch clearing on private transitions,
label/attachment scoping.
- **Denial of service** - input bounds for npm dist-tags, Debian control
files, Arch file lists, and SSH keys.

### 📌 Attention for site admins

Not breaking - existing configs keep working - but two changes are worth
a look:

- **New SSRF protection** Outbound requests (migrations, OAuth2 avatars,
OpenID discovery, pull mirrors, proxy path) are now validated against
the allow/block host lists. If your instance legitimately reaches
internal hosts, you may need to add them to
`[security].ALLOWED_HOST_LIST` (and the relevant `ALLOW_LOCALNETWORKS`
settings).
- **Deprecation** `[webhook].ALLOWED_HOST_LIST` is deprecated and will
be removed in a future release. Use `[security].ALLOWED_HOST_LIST`
instead; the old key still works for now.

---------

Co-authored-by: TheFox0x7 <thefox0x7@gmail.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Zettat123 <zettat123@gmail.com>
This commit is contained in:
bircni
2026-07-12 19:14:09 +02:00
committed by GitHub
parent d2bd1589fe
commit f69e15afe7
93 changed files with 1715 additions and 138 deletions
Download Patch File Download Diff File Expand all files Collapse all files
models/issues/label.go
+13 -6
View File
@@ -6,6 +6,7 @@ package issues
import (
"context"
"errors"
"fmt"
"slices"
"strconv"
@@ -27,12 +28,6 @@ type ErrRepoLabelNotExist struct {
RepoID int64
}
// IsErrRepoLabelNotExist checks if an error is a RepoErrLabelNotExist.
func IsErrRepoLabelNotExist(err error) bool {
_, ok := err.(ErrRepoLabelNotExist)
return ok
}
func (err ErrRepoLabelNotExist) Error() string {
return fmt.Sprintf("label does not exist [label_id: %d, repo_id: %d]", err.LabelID, err.RepoID)
}
@@ -312,6 +307,18 @@ func GetLabelInRepoByName(ctx context.Context, repoID int64, labelName string) (
return l, nil
}
// GetLabelInRepoOrOrgByID returns the label with labelID scoped to the repo, falling back to the
// repo's owning organization when ownerIsOrg is set. It returns ErrRepoLabelNotExist /
// ErrOrgLabelNotExist when the label is in neither scope, so a foreign-but-existing label ID is
// indistinguishable from a nonexistent one (no cross-repo enumeration oracle).
func GetLabelInRepoOrOrgByID(ctx context.Context, repoID, ownerID int64, ownerIsOrg bool, labelID int64) (*Label, error) {
label, err := GetLabelInRepoByID(ctx, repoID, labelID)
if err != nil && errors.Is(err, util.ErrNotExist) && ownerIsOrg {
return GetLabelInOrgByID(ctx, ownerID, labelID)
}
return label, err
}
// GetLabelInRepoByID returns a label by ID in given repository.
func GetLabelInRepoByID(ctx context.Context, repoID, labelID int64) (*Label, error) {
if labelID <= 0 || repoID <= 0 {