DEBIAN-CVE-2026-24137
sigstore framework is a common go library shared across sigstore services and clients. In versions 1.10.3 and below, the legacy TUF client (pkg/tuf/client.go) supports caching target files to disk. It constructs a filesystem path by joining a cache base directory with a target name sourced from signed target metadata; however, it does not validate that the resulting path stays within the cache base directory. A malicious TUF repository can trigger arbitrary file overwriting, limited to the permissions that the calling process has. Note that this should only affect clients that are directly using the TUF client in sigstore/sigstore or are using an older version of Cosign. Public Sigstore deployment users are unaffected, as TUF metadata is validated by a quorum of trusted collaborators. This issue has been fixed in version 1.10.4. As a workaround, users can disable disk caching for the legacy client by setting SIGSTORE_NO_CACHE=true in the environment, migrate to https://github.com/sigstore/sigstore-go/tree/main/pkg/tuf, or upgrade to the latest sigstore/sigstore release.
DEBIAN-CVE-2026-24137
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-24137
golang-github-sigstore-sigstore
Source reference: /affected/0/package/name
- Affected versions
- 1.10.1-1
Source reference:
/affected/0/versions1.10.3-1Source reference:
/affected/0/versions1.10.4-1Source reference:
/affected/0/versions1.10.5-1Source reference:
/affected/0/versions1.10.6-1Source reference:
/affected/0/versions1.10.8-1Source reference:
/affected/0/versions1.10.9-1Source reference:
/affected/0/versions1.9.3-2Source reference:
/affected/0/versions1.9.5-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
golang-github-sigstore-sigstore
Source reference: /affected/1/package/name
- Affected versions
- 1.10.1-1
Source reference:
/affected/1/versions1.10.3-1Source reference:
/affected/1/versions1.9.3-2Source reference:
/affected/1/versions1.9.5-1Source reference:
/affected/1/versions - Fixed versions
- 1.10.4-1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "golang-github-sigstore-sigstore",
"purl": "pkg:deb/debian/golang-github-sigstore-sigstore?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.10.1-1",
"1.10.3-1",
"1.10.4-1",
"1.10.5-1",
"1.10.6-1",
"1.10.8-1",
"1.10.9-1",
"1.9.3-2",
"1.9.5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-24137.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.4-1"
}
]
}
],
"package": {
"name": "golang-github-sigstore-sigstore",
"purl": "pkg:deb/debian/golang-github-sigstore-sigstore?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.10.1-1",
"1.10.3-1",
"1.9.3-2",
"1.9.5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-24137.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57489 · Revision 1
- Added to Heist Feed
- Publisher date