Back
CVE-2026-48815
sigstore-js: `certificateOIDs` verification constraints are silently dropped and never enforced
High7.5EPSS 0.17%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVDNVD · Deferred | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.17% · top 93% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
- affected < 4.1.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmsigstoreGHSA-52v5-jr5w-gjxr (opens in a new tab)
References (4)
- https://github.com/sigstore/sigstore-js/security/advisories/GHSA-52v5-jr5w-gjxr (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/sigstore/sigstore-js/pull/1658 (opens in a new tab)x_refsource_MISC
- https://github.com/sigstore/sigstore-js/commit/7845532f9d17f6f765363dbee82b01bd159fb52b (opens in a new tab)x_refsource_MISC
- https://github.com/sigstore/sigstore-js/releases/tag/sigstore%404.1.1 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-52v5-jr5w-gjxr (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-48815)Record last updated .