CVE-2026-48815

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 91% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

Published

July 1, 2026

Last Modified

July 15, 2026

Advisory Details (4)

Auto-updated Jul 15, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
githubMentions a patch (unverified)🟡 PoC Available

`certificateOIDs` verification constraints are silently dropped and never enforced · Advisory · sigstore/sigstore-js · GitHub

https://github.com/sigstore/sigstore-js/security/advisories/GHSA-52v5-jr5w-gjxr
github_release Patch Available

[email protected]

Patch available: sigstore/sigstore-js [email protected]

https://github.com/sigstore/sigstore-js/releases/tag/sigstore%404.1.1
github_pr Patch Available

verification of OID certificate extensions

Patch available: sigstore/sigstore-js @sigstore/[email protected] (PR #1658 merged 2026-05-22)

https://github.com/sigstore/sigstore-js/pull/1658
github_commit Patch Available

commit 7845532f9d17 (sigstore/sigstore-js)

Patch available: sigstore/sigstore-js @sigstore/[email protected] (contains commit 7845532f9d17)

https://github.com/sigstore/sigstore-js/commit/7845532f9d17f6f765363dbee82b01bd159fb52b

Vendor Advisories for CVE-2026-48815(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
sigstore—
  • every version up to 4.1.1: fixed in 4.1.1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 113 total refreshes for this CVE.

  1. 2026-10-10 20:00 UTCEPSS rescore
  2. 2026-10-09 20:07 UTCEPSS rescore
  3. 2026-10-08 17:12 UTCEPSS rescore
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  1. 2026-09-11 14:53 UTCEPSS rescore
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  66. 2026-07-30 23:37 UTCEG score recompute
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  74. 2026-07-26 14:54 UTCEPSS rescore
  75. 2026-07-26 13:14 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-48815?
CVE-2026-48815 is a high vulnerability published on July 1, 2026. 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…
When was CVE-2026-48815 disclosed?
CVE-2026-48815 was first published on July 1, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48815 actively exploited?
CVE-2026-48815 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-48815?
CVE-2026-48815 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-48815?
A fix for CVE-2026-48815 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-48815 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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