CVE-2026-63770 (GCVE-0-2026-63770)

Vulnerability from cvelistv5 – Published: 2026-07-20 19:02 – Updated: 2026-08-21 20:32 X_Open Source
VLAI
Title
Glance 0.8.5 IP Spoofing Authentication Brute-Force Protection Bypass
Summary
Glance through 0.8.5 contains an IP address spoofing vulnerability in the authentication handler that allows unauthenticated attackers to bypass brute-force lockout protections by supplying arbitrary values in the X-Forwarded-For request header when the server proxied option is enabled. Attackers can manipulate the leftmost value of the X-Forwarded-For header to make each login attempt appear to originate from a distinct IP address, preventing the per-IP failed-login counter from reaching the lockout threshold and enabling unlimited credential guessing against the authentication endpoint.
Severity
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 18:49 UTC
CWE
  • CWE-348 - Use of Less Trusted Source
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6106 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
glanceapp glance Affected: 0 , ≤ 0.8.5 (semver)
    cpe:2.3:a:glance_project:glance:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-07-05 00:00
Credits
George Chen
Show details on NVD website
To clipboard 

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