CVE-2026-48815 Details
Description
sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 4.1.1, the documented certificateOIDs option in sigstore.verify() is accepted by the public API but discarded before verification, so required certificate extension OIDs are never checked and applications relying on certificateOIDs to restrict which certificates may sign artifacts can accept unauthorized certificates. This issue is fixed in version 4.1.1.
A vulnerability exists in the Sigstore JavaScript library, specifically in versions through 4.1.0, where the 'certificateOIDs' option in the 'sigstore.verify()' function is not properly enforced. Although this option is accepted by the public API, it is ignored before the verification process, leading to a situation where required certificate extension OIDs are not checked. As a result, applications that rely on 'certificateOIDs' to restrict which certificates can sign artifacts may inadvertently accept unauthorized certificates.
Users can upgrade to Sigstore version 4.1.1 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 14, 2026CISA-ADP
Assessed Jul 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/sigstore/sigstore-js/security/advisories/GHSA-52v5-jr5w-gjxr | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/sigstore/sigstore-js/commit/7845532f9d17f6f765363dbee82b01bd159fb52b | [email protected] | Source CodeVendor |
| https://github.com/sigstore/sigstore-js/pull/1658 | [email protected] | Issue TrackingVendor |
| https://github.com/sigstore/sigstore-js/releases/tag/sigstore%404.1.1 | [email protected] | Release NotesVendor |
| https://github.com/sigstore/sigstore-js/security/advisories/GHSA-52v5-jr5w-gjxr | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-347 | Improper Verification of Cryptographic Signature | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| sigstore-js | <= 4.1.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | CVE Modified | CISA-ADP |
| Jul 14, 2026 | New CVE Received | [email protected] |