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Fencer Intel
medium 5.3

CVE-2026-126955 json

Glance 0.8.0 before 0.8.8 Page Slug Enumeration via Response Discrepancy

published 7d ago modified yesterday also EUVD-2026-125110 , GHSA-294x-cjq2-6j5r

Unreviewed: the maintainers' own advisory

Published by the maintainers on their GitHub repository glanceapp/glance. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits
0
none known

Summary

Glance from 0.8.0 before 0.8.8 contains an observable response discrepancy in handlePageRequest and handlePageContentRequest that allows unauthenticated attackers to enumerate configured page slugs. Attackers can request candidate names against /{page} or /api/pages/{page}/content/ and compare 303/401 versus 404 status codes to discover hidden page names.

Patch / fix

Is CVE-2026-126955 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
yesterday

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-14).

CVSS scores

assigned by version score vector
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • glanceapp glance

Classification

Weakness
  • CWE-204 Observable Response Discrepancy

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of glanceapp/glance published their own advisory on GitHub. Reviewed sources take precedence over it.