CVE-2026-106460

MEDIUMPre-NVD 6.86.8
EchelonGraph scoreLOW confidence

This medium-severity CVE scores 6.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). 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: secondary
Trending — 3 sources updated this week
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Backstage is an open framework for building developer portals. From 0.3.0 until 0.6.15 and 0.7.5, the @backstage/plugin-auth-node package did not consistently honor explicit negative email verification during shared OAuth profile normalization. The affected paths include a selected profile email marked verified: false, a matching raw provider email marked email_verified: false, and an email obtained only from an ID token marked email_verified: false. Exploitation requires an admitted identity-provider user who can supply or change an unverified email and a deployment that uses the selected profile email to resolve catalog identities. The verification metadata must apply to the selected email; an absent email_verified claim alone is not affected. In an affected configuration, the user may assume another catalog identity and obtain its associated access and permissions. This issue is fixed in versions 0.6.15 and 0.7.5.

CVSS v3
6.8
EG Score
6.8MEDIUMlow confidence
EG Risk
35
EG Risk 35/100CISA SSVC

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
Severity68% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
22nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 6, 2026

Last Modified

October 7, 2026

Advisory Details (6)

Auto-updated Oct 6, 2026
Patch available. Sources: github_commit, github_release, github.
github_release Patch Available

v1.54.7

Patch available: backstage/backstage v1.54.7

https://github.com/backstage/backstage/releases/tag/v1.54.7
github_release Patch Available

v1.49.7

Patch available: backstage/backstage v1.49.7

https://github.com/backstage/backstage/releases/tag/v1.49.7
github_commit Patch Available

commit fc5e30aba8ea (backstage/backstage)

Patch available: backstage/backstage v1.54.7 (contains commit fc5e30aba8ea)

https://github.com/backstage/backstage/commit/fc5e30aba8ea7282ed3658c3b985cec71051cf9d
github_commit Patch Available

commit f0a43dacd1b5 (backstage/backstage)

Patch available: backstage/backstage v1.49.7 (contains commit f0a43dacd1b5)

https://github.com/backstage/backstage/commit/f0a43dacd1b501064da042b43eab9c1e06371d38
github_commit Patch Available

commit 507e65ab9160 (backstage/backstage)

Patch available: backstage/backstage v1.55.0 (contains commit 507e65ab9160)

https://github.com/backstage/backstage/commit/507e65ab9160aae6b602513dbfaebdd6be0ca8bb
githubMentions a patch (unverified)

Explicit negative email verification can be ignored during shared OAuth profile normalization · Advisory · backstage/backstage · GitHub

https://github.com/backstage/backstage/security/advisories/GHSA-xm5q-p7w3-x6cp

Vendor Advisories for CVE-2026-106460(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 4× 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.

  1. 2026-10-07 23:47 UTCEPSS rescore
  2. 2026-10-06 21:32 UTCEG score recompute
  3. 2026-10-06 20:37 UTCEG score recompute
  4. 2026-10-06 20:36 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-106460?
CVE-2026-106460 is a medium vulnerability published on October 6, 2026. Backstage is an open framework for building developer portals. From 0.3.0 until 0.6.15 and 0.7.5, the @backstage/plugin-auth-node package did not consistently honor explicit negative email verification during shared OAuth profile normalization. The affected paths include a selected profile email…
When was CVE-2026-106460 disclosed?
CVE-2026-106460 was first published on October 6, 2026, with the most recent update on October 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-106460 actively exploited?
CVE-2026-106460 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-106460?
CVE-2026-106460 has a CVSS base score of 6.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-106460?
A fix for CVE-2026-106460 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-106460 are linked in the Vendor Advisories panel on this page.

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