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01 Record

CVE-2026-106460

Backstage: Explicit negative email verification can be ignored during shared OAuth profile normalization

MediumPUBLISHEDCNA: GitHub_M
CNA base score6.8 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
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02 Description

Backstage: Explicit negative email verification can be ignored during shared OAuth profile normalization

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.31% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 24.0% of scored records. A rank, not a probability.
NVD base score
6.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-27.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-06 20:22Z22 DAYS AGO
Last updated
2026-10-09 01:48Z20 DAYS AGO
Reserved
2026-10-06
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 6.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-287Improper AuthenticationClass
  • CWE-290Authentication Bypass by SpoofingBase
Data version
5.2
Document digest
8b7fb627cdd2b67822b61f89215a7cf01d4974510e70f23e5b2cde81979c4060

05 Affected products

VendorProductVersionsPlatforms
backstagebackstage>= 1.18.0, < 1.49.7, >= 1.50.0-next.0, < 1.54.7—
@backstageplugin-auth-node>= 0.3.0, < 0.6.15, >= 0.7.0, < 0.7.5—

06 References